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Research group of Dr. Arturo S. Leon

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PUBLICATIONS

For a complete list of my publications please click here (Google Scholar). For my most recent publications please see below.


BOOKS

  1. Leon, A. S. (2009) “Improved Modeling of Transient Flows in Storm-sewer Systems. Theory and Applications”, ISBN 978-3-639-15213-5, VDM Verlag Dr. Müller, Germany.
  2. Leon, A. S. (2000) “Local scour around cylindrical piers in non-cohesive beds (In Spanish)”, Distribuidora Lopez G., Lima, Peru.
  3. Leon, A. S., and Coronado F.  (1998) “The hydraulic design of a bottom rack-type intake in supercritical regime (In Spanish)”, W. H. Editores S.R. Ltda., Lima, Peru.

BOOK CHAPTER

  1. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2007). “An efficient finite-volume scheme for modeling water hammer flows.''  Contemporary Modeling of Urban Water Systems, Monograph 15, W. James (Editor in Chief).
  2. Leon, A. S., Oberg N., Schmidt, A. R., and García, M. H. (2011). “The Illinois Transient Model. A state-of-the-art model for simulating the flow dynamics in combined storm-sewer systems”. Urban Water Systems, Monograph 19.

JOURNAL (Refereed) PAPERS

  1. Chen, D., Leon, A. S., Engle, S. P., Fuentes, C., and Chen, Q. (2017). “Offline training for improving online performance of a genetic algorithm based optimization model for hourly multi-reservoir operation.” Environmental Modelling and Software, 96, 46-57. E-print: https://doi.org/10.1016/j.envsoft.2017.06.038. [see PDF
  2. Chen, D., Leon, A. S., Hosseini, P., Gibson, N., and Fuentes, C.  (2017) “Application of Cluster Analysis for Finding Operational Patterns of Multireservoir System during Transition Period.” ASCE Journal of Water Resources Planning and Management. 143(8). E-print: http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29WR.1943-5452.0000772. [see PDF
  3. Leon, A. S. and Gifford-Miears, C. H., (2017) “Evaluation of the PG Method for Modeling Unsteady flows in Complex Bathymetries.” IAHR Journal of Applied Water Engineering and Research. Accepted. E-print: http://dx.doi.org/10.1080/23249676.2017.1287017 [see PDF]
  4. Oberg N., Schmidt, A. R., Landry, B. J., Leon, A. S., Waratuke, A. R.,  Mier,  J. M. and García, M. H. (2017) “Improved understanding of combined sewer systems using the Illinois Conveyance Analysis Program (ICAP).” Urban Water Journal, 14(8), 811-819. E-print: http://dx.doi.org/10.1080/1573062X.2016.1269811. [see PDF]
  5. Leon, A. S. and Goodell C. (2016) .“Controlling HEC-RAS using MATLAB” Journal of Environmental Modelling and Software, 84, 339–348. [see PDF]
  6. Chen, D., Chen, Q., Leon, A. S., and Li, R. (2016). “A Genetic Algorithm Parallel Strategy for Optimizing the Operation of Reservoirs with Multiple Eco-environmental Objectives” Water Resources Management, 30(7), 2127–2142. DOI: 10.1007/s11269-016-1274-1 [see PDF]
  7. Chen, D., Leon, A. S., Gibson, N., and Hosseini, P. (2016) “Dimension reduction of decision variables for multireservoir operation: A spectral optimization model.” Water Resources Research, 52(1), 36–51. DOI: 10.1002/2015WR017756. [see PDF]
  8. Leon, A. S. (2016). “Mathematical models for quantifying eruption velocity in degassing pipes based on exsolution of a single gas and simultaneous exsolution of multiple gases” Journal of Volcanology and Geothermal Research, 323, 72–79. [see PDF]
  9. Lowe, R. J., Leon, A. S., Symonds, G., Falter, J. L., Gruber, R. (2015). “The intertidal hydraulics of tide-dominated reef platforms.” Journal of Geophysical Research - Oceans,  120(7), 4845–4868. [see PDF]
  10. Nania,  L. S., Leon, A. S.,  and Garcia, M. H. (2015). “Hydrologic-Hydraulic Model for Simulating Dual Drainage and Flooding in Urban Areas: Application to a Catchment in the Metropolitan Area of Chicago.” ASCE Journal of Hydrological Engineering, 20(5), 04014071-1 – 04014071-13. [see PDF]
  11. Leon, A. S., Zhu, L. (2014). “A dimensional analysis for determining optimal discharge and penstock diameter in impulse and reaction water turbines.” Renewable Energy, 71, 609–615. [see PDF]
  12. Gibson, N. L., Gifford-Miears, C., Leon, A. S., Vasylkivska, V. S. (2014). “Efficient computation of unsteady flow in complex river systems with uncertain inputs.” International Journal of Computer Mathematics, 91(4), 781-797. DOI: 10.1080/00207160.2013.854336 [see PDF]
  13. Leon, A. S., Kanashiro, E. A., Valverde, R., and Sridhar V. (2014) “Dynamic Framework for Intelligent Control of River Flooding - Case Study.” ASCE Journal of Water Resources Planning and Management, 140(2), 258-268. [see PDF]
  14. Leon A. S., Kanashiro E. A., and Gonzalez-Castro J. A. (2013), “Fast Approach for Unsteady Flow Routing in Complex River Networks Based on Performance Graphs”, ASCE Journal of Hydraulic Engineering, 139(3), 284–295. [see PDF]
  15. Leon, A. S. and Gifford-Miears, C. H. and Choi, Y. (2013) “Well-balanced scheme for modeling open-channel and surcharged flows in steep-slope closed conduit systems.” ASCE Journal of Hydraulic Engineering, 139(4), 374–384. [see PDF]
  16. Leon, A. S., Oberg N., Schmidt, A. R., and García, M. H. (2011). “The Illinois Transient Model. A state-of-the-art model for simulating the flow dynamics in combined storm-sewer systems”. Urban Water Systems, Monograph 19. [see PDF]
  17. Nania, L. S., Gómez, M., Dolz, J. and León, A. S. (2010). Discussion of Experimental and numerical modelling of symmetrical four-branch supercritical cross junction flow. IAHR Journal of Hydraulic Research, 48(6), 826-828. [see PDF]
  18. Leon, A. S., and Ghidaoui, M. S. (2010) Closure to Discussion of “Application of Godunov-type schemes to transient mixed flows.” IAHR Journal of Hydraulic Research, 48(5), 688-689. [see PDF]
  19. Leon, A. S., Liu, X., Ghidaoui, M. S., Schmidt, A. R., and Garcia, M. H. (2010) “Junction and drop-shaft boundary conditions for modeling free-surface, pressurized, and mixed free-surface pressurized transient flows.” ASCE Journal of Hydraulic Engineering, 136(10), 705-715. [see PDF]
  20. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2010) “A robust two-equation model for transient mixed flows.” IAHR Journal of Hydraulic Research, 48(1), 44-56. [see PDF]
  21. Leon, A. S., Ghidaoui, M.S. (2010). Discussion of “Numerical oscillations in pipe-filling bore predictions by shock-capturing models” by J. G. Vasconcelos, S. J. Wright, and P. L. Roe. ASCE J. Hydraulic Engng., 136(6), 392-393. [see PDF]
  22. Leon, A. S., Nania, L. S. and Sridhar, V. (2010). Discussion of “Potential Dangers of Simplifying Combined Sewer Hydrologic/Hydraulic Models” by J. P. Cantone and A. R. Schmidt. ASCE J. Hydrological. Engng., 15, 587-588. [see PDF]
  23. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2009) “Application of Godunov-type schemes to transient mixed flows.” IAHR Journal of Hydraulic Research, 47(2), 147-156. [see PDF]
  24. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2008) “An efficient second-order accurate shock-capturing scheme for modeling one and two-phase water hammer flows.”  ASCE Journal of Hydraulic Engineering, 134(7), 970-983. [see PDF]
  25. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2007). “An efficient finite-volume scheme for modeling water hammer flows.''  Contemporary Modeling of Urban Water Systems, Monograph 15, W. James (Editor in Chief).
  26. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2006) “Godunov-type solutions for transient flows in sewers”.  ASCE Journal of Hydraulic Engineering, 132(8), 800-813. [see PDF]

Peer-Reviewed Conference Proceedings

  1. Leon, A. S. (2017). “Mechanisms that lead to the occurrence of violent geysers in storm water and combined sewer systems.” In Proceedings of 37th IAHR World Congress, XXXX-XXXX, Kuala Lumpur, Malaysia,  August 13-18, 2017.
  2. Leon, A. S. (2016). “Determining Optimal Discharge and Optimal Penstock Diameter in Water Turbines.” In B. Crookston & B. Tullis (Eds.), Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June (pp. 332-342).  doi:10.15142/T390628160853 (ISBN 978-1-884575-75-4).
  3. Leon, A. S. and Alnahit, A. O. (2016). “A Remotely Controlled Siphon System for Dynamic Water Storage Management.” In B. Crookston & B. Tullis (Eds.), Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June (pp. 1-11). doi:10.15142/T3690628160853 (ISBN 978-1-884575-75-4). 
  4. Choi, Y., Leon, A. S., and Apte, S. (2016). “A One-Dimensional Numerical Model to Predict Pressure and Velocity Oscillations of a Compressed Air Pocket in a Vertical Shaft Filled with Water.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 202-211, West Palm Beach, FL, May 22-26, 2016 (contributed text and discussion). 
  5. Leon, A. S. (2016). “New Evidence on the Causes of Explosives Geysers in Stormwater and Combined Sewer Systems: A Simplified Model for the Prediction of These Geysers.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 224-233, West Palm Beach, FL, May 22-26, 2016.  *
  6. Chen, D., Leon, A. S., and Hosseini P. (2016).“Patterns of Optimal Operational Schemes for the Short-Term Operation of a Multi-Reservoir System with Shifting Objectives.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 428-437, West Palm Beach, FL, May 22-26, 2016 (contributed text and discussion).  †
  7. Choi, Y., Leon, A. S., Apte, S. (2014). “Three-dimensional Numerical Modeling of Air-water Geyser Flows.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1535-1548, Portland OR, June 1-5, 2014 (provided significant text and discussion).
  8. Chen, D., Leon, A. S., Hosseini P. (2014). “Optimizing Short-term Operation of a Multi-reservoir System During Transition of Objectives and Constraints.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1093- 1105, Portland OR, June 1-5, 2014 (provided significant text and discussion).
  9. Gomez, L. A., Lee, H. W., and Leon, A. S.  (2014). “A real options-based framework to evaluate investments in river flood control under uncertainty.” In proceedings of Second International Conference on Vulnerability and Risk Analysis and Management (ICVRAM) and the Sixth International Symposium on Uncertainty, Modeling, and Analysis (ISUMA), 1465-1474, Liverpool, UK, July 13-16, 2014.
  10. Leon, A. S., Valverde, R., and Gonzalez-Castro, J. A. (2012). “A robust, numerically efficient model for unsteady flow routing in topologically complex river networks.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1119-1128, Albuquerque, New Mexico, May 20-24, 2012.
  11. Leon, A. S., Kanashiro E. A., Gichamo, T. Z., Valverde, R., and Gifford-Miears, C. H. (2012). “Towards the intelligent control of river flooding.” In proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 1687-1696, Albuquerque, New Mexico, May 20-24, 2012.
  12. Bernedo, C. E., Julien, P., Leon, A. S. (2011). “Dam Breach Analysis in Tailings Storage Facilities (TSF)” In Proceedings of the ASCE-EWRI World Environmental and Water Resources Congress, 2216-2224, Palm Springs, CA, May 2011
  13. Leon, A. S., Kanashiro E.A. (2010). “A New Coupled Optimization-Hydraulic Routing Model for Real-Time Operation of Regulated River Systems”, In Proceedings of Watershed Management, 213-224, ASCE-EWRI, August 23-27, 2010, Madison, Wisconsin.
  14. Leon, A. S., Choi, N. J., Schmidt, A. R., and García, M. H. (2010). “Flow Dynamics in Combined Storm-Sewer Systems: Application of the Illinois Transient Model (ITM) to the Calumet TARP System in Chicago, Illinois.” In Proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 3703-3717, Providence, Rhode Island, May 16-20, 2010.
  15. Leon, A. S., Liu, X. Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2009). “Boundary Conditions for Simulating Complex Storm-sewer Systems in Free Surface, Pressurized, and Mixed Flow Conditions.” In Proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 5557-5567, Kansas City, Missouri, 2009
  16. Leon, A. S., Nanía, L. S., Schmidt, A. R., and García, M. H. (2009). “A Robust And Fast Model For Simulating Street Flooding.” In Proceedings of ASCE-EWRI World Environmental & Water Resource Congress, 5364-5373, Kansas City, Missouri, 2009.
  17. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2008). “A Shock-capturing Approach for Simulating Gravity Flows, Pressurized Flows and the Simultaneous Occurrence of Gravity and Pressurized Flows.” In Proceedings of 10th International Conference on Pressure Surges, 489-502, BHR Group, 14-16 May, 2008, Edinburgh, United Kingdom.
  18. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2008). “A finite volume model for mixed free surface-pressurized flows in drainage systems.” In Proceedings of World Water and Environmental Resources Congress, CD-ROM Edition (10 pages), Hawaii, USA, May 13-16, 2008. Permalink: http://dx.doi.org/10.1061/40976(316)671.
  19. Leon, A. S., Cataño-Lopera, Y. A., Liu, X., Schmidt, A. R., and García, M. H. (2008). “Experimental and CFD modeling of a vortex flow restrictor.” In Proceedings of World Water and Environmental Resources Congress, CD-ROM Edition (10 pages), Hawaii, USA, May 13-16, 2008. Permalink: http://dx.doi.org/10.1061/40976(316)646. [see PDF]
  20. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2007). “Godunov-type solutions for two-phase water hammer flows.” In Proceedings of Fifth International Symposium on Environmental Hydraulics, CD-ROM Edition (7 pages), Tempe, Arizona, USA. Dec.  4-7, 2007. [see PDF]
  21. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R. and Garcia, M. H. (2006) “An efficient numerical scheme for the modeling of two-phase bubbly homogeneous air-water mixtures”. In Proceedings of World Environmental & Water Resources Congress, CD-ROM Edition, P32 (10 pages),  Nebraska, 2006. [see PDF]
  22. Leon, A. S., Ghidaoui, M. S., Schmidt, A. R., and García, M. H. (2005). “Importance of numerical efficiency for real time control of transient gravity flows in sewers.” In Proceedings of XXXI IAHR Congress, 1106-1115, Seoul, Korea. [see PDF]
  23. Schmidt, A. R., Ghidaoui, M. S., Leon, A. S., and García, M. H. (2005). “Review of sewer surcharging phenomena and models.” In Proceedings of XXXI IAHR Congress, 257-258, Seoul, Korea.

Non-Refereed Conference Proceedings
  1. Leon, A. S. (2017). “Dynamic management of water storage of wetlands and shallow ponds for flood control” In Proceedings of 37th IAHR World Congress, Kuala Lumpur, Malaysia, August 13-18, 2017.
  2. Gibson, N., Leon, A. S. and Hosseini P. (2017). “Flexible decision variables in reservoir operation using dimension reduction approach”, Presented in the 2017 SIAM Conference on Optimization, Vancouver, British Columbia, Canada, May 22-25, 2017.
  3. Leon, A. S. (2017). “Why Violent Geysers Occur in Stormwater and Combined Sewer Systems?” Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Sacramento, CA, May 21-25, 2017. 
  4. Chen, D., Leon, A. S., Gibson, N. L., and Vasylkivska, V. S. (2014). “Using a Concurrent Hybrid Method to Optimize Short-Term Operation of a Multi-Reservoir System with Multiple Objectives”. In Proceedings of the 11th International Conference on Hydroinformatics HIC 2014, New York City, NY, August 17-21, 2014.
  5. Hosseini P., Chen, D., Leon, A. S., Gibson, N., Hoyle C. (2014). “A Multi-objective Robust Optimization Framework for the Operation of Multi-reservoir Systems”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, June 1-5, 2014.
  6. Leon, A. S., Hosseini P. (2014). “Effects of Small Tidal-type Waves on Rating Curves in Rivers”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, June 1-5, 2014.
  7. Leon, A. S., Zhu L. (2014). “A Dimensional Analysis for Determining Optimal Discharge and Optimal Penstock Diameter in Impulse and Reaction Water Turbines”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, June 1-5, 2014.
  8. Gomez, L., and Leon, A. S. (2014). “Investment Time for Flood Control Under Uncertainty: A Real Options-Based Framework”. 2014 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  9. Gibson, N., Gomez, L., Leon, A. S., and Vasylkivska, V. (2014). “A Domain Decomposition Method for Unsteady Flow Routing in Complex River Systems”. 16th SIAM Conference on Parallel Processing for Scientific Computing, Portland OR, February 18-21, 2014.   
  10. Leon, A. S., Gifford-Miears, C., and Gibson, N., Hoyle, C. (2013). “Development of a State-of-the-Art Computational Framework for the Optimal Control of Multi-Reservoir Systems Under Uncertainty”, Presented in the 2013 AWRA Annual Water Resources Conference, Portland OR, November 4-7, 2013.
  11. Chen, D., Leon, A. S., Chen, Q. and Li, R. (2013). “Pareto-Optimal Solutions and Operational Strategies for a Multi-Objective Reservoir with Ecological and Environmental Purposes: A Case Study of Qingshitan Reservoir”, Presented in the 2013 AWRA Annual Water Resources Conference, Portland OR, November 4-7, 2013.
  12. Leon, A. S., Gifford-Miears C., and Gibson N. (2013). “A Framework for Propagation of Uncertainty in River Systems”, Presented in the ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati OH, May 19-22, 2013
  13. Alam M., and Leon, A. S. (2013). “Upper Limit of Extractable Hydropower”. 2013 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013
  14. Choi, Y., and Leon, A. S. (2013). “Towards Predicting the occurrence of geysers and CSOs in combined sewer systems - An experimental, theoretical and numerical approach”. 2013 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013
  15. Choi, Y., Leon, A. S. (2012). “Towards predicting the occurrence of geysers and CSOs in combined sewer systems - an experimental, theoretical and numerical approach.” Presented in the 2012 Sustainable Stormwater Symposium, Portland, Oregon, September 19-20, 2012.
  16. Bernedo, C. E., Salas, J., and Leon, A. S. (2012). “Challenges of safe and sound designs: Hydrologic design criteria in areas affected by El Niño phenomenon… Can conventional hydrology be applied?” In proceedings of the 2012 Dam Safety Conference, Association of State Dam Safety Officials, Denver, CO., September 16-21, 2012.
  17. Leon, A. S., Gibson, N. L., and Gifford-Miears, C. H. (2012). “Toward reduction of uncertainty in complex multi-reservoir river systems.” In proceedings of the XIX International Conference on Computational Methods in Water Resources (CMWR), University of Illinois at Urbana-Champaign, Urbana, Illinois, June 17-21, 2012.
  18. Leon, A. S., Kanashiro, E. A., Gichamo, T. Z., and Valverde, R. (2012). “Towards the intelligent control of river flooding. Harmonizing long-term objectives (e.g., irrigation, hydropower) with the flooding objective.” In proceedings of the XIX International Conference on Computational Methods in Water Resources (CMWR), University of Illinois at Urbana-Champaign, Urbana, Illinois, June 17-21, 2012.
  19. Choi, Y., and Leon, A. S. (2012). “Minimizing Geysers and CSOs in the Portland Combined Sewer System.” 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  20. Gifford-Miears, C. H., and Leon, A. S. (2012). “Applicability of Three Dimensional Modeling in the Construction of Hydraulic Performance Graphs for Unsteady Flow Routing in Complex River Networks.” 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  21. Gomez, L.A., and Leon, A. S. (2012). “Improving the Computational Efficiency of the Hydraulic Performance Graphs for Unsteady Flow Routing in Complex River Networks.” 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  22. Gibson, N. L., Leon, A. S., and Gifford-Miears, C. H. (2012). “Toward Reduction of Uncertainty in Complex Multi-Reservoir River Systems.” SIAM (Society for Industrial and Applied Mathematics) Conference on Uncertainty Quantification, Raleigh, North Carolina, April 2-5, 2012.
  23. Leon, A. S., Kanashiro, E. A., Valverde, R., Gifford-Miears, C. H., Gichamo, T. Z., Gomez L., and Rask, J. (2012) “A Computationally Efficient and Robust Approach for Multi-objective Operation of Multi-reservoir systems Subjected to Multiple Constraints.” Reservoir System Modeling Technologies Conference, Bonneville Power Administration, February 21-22, 2012, Portland, Oregon.
  24. Gibson, N. L., Gichamo, T. Z., Valverde, R., Gifford-Miears, C. H., and Leon, A. S. (2012) “Towards reduction of uncertainty in the operation of reservoir systems.” Reservoir System Modeling Technologies Conference, Bonneville Power Administration, February 21-22, 2012, Portland, Oregon.
  25. Leon, A. S., and Gichamo, T. Z. (2011). “A novel physically-based framework for the intelligent control of river flooding.” Oregon Water Conference, Corvallis, Oregon, 2011.
  26. Leon, A. S. (2006) “Towards modeling for real-time control of combined-sewer-overflow systems: Application to the Calumet TARP System in Chicago, Illinois.”  Proc., Illinois Water Conference, October 4-5, 2006. Edited by Jennifer Fackler, Illinois Water Resources Center.
  27. Leon, A. S. (2006). “Efficient numerical modeling of one and two-phase transient flows (In Spanish). Proc., I International Congress of Hydraulics, Hydrology and Environment. Organized by Instituto de la Construcción y Gerencia, Lima, Peru.
  28. Leon, A. S. (2006). “New numerical model for the simultaneous simulation of unsteady free surface and pressurized flows. (In Spanish). Proc., I International Congress of Hydraulics, Hydrology and Environment. Organized by Instituto de la Construcción y Gerencia, Lima, Peru.
  29. Leon, A. S. (2004). “Special topics in unsteady flows and its applications to Hydraulic Engineering (Key Note speaker - in Spanish). Proc., I Conference in Hydraulics of Rivers and Channels, Lima, Peru.
  30. Leon, A. S. (2003). “One-dimensional modeling of the intrusion of contaminants for conservative substances in non-permanent and non-uniform flows (In Spanish).” Proc., XIV National congress of Civil Eng., Iquitos, Peru.
  31. Leon, A. S. (2002). “Alternative of hydraulic design for intakes in steep rivers and large transport of boulders. (In Spanish). Proc., Instituto de la Construcción y Gerencia, Lima, Peru.
  32. Leon, A. S. (1999). “Local scour around cylindrical piers in non-cohesive beds (In Spanish).” Proc., XII National congress of Civil Eng., Huánuco, Peru.

POSTERS.
  1. Leon, A. S. and Goodell, C. (2017). “Automation of HEC-RAS using MATLAB.” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Sacramento, CA, May 21-25, 2017.
  2. Chen, D., Leon, A. S., Hosseini, P. (2016). “A warm-start Strategy to Improve the Performance of an Evolutionary Algorithm for Optimizing Operation of Multi-reservoirs.” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, West Palm Beach, FL, May 22-26, 2016.
  3. Leon, A. S. and Elayeb, I., (2016). “An Experimental Study on Geysers with Unsaturated Air and Near-saturation CO2. Implications on the Design of Stormwater and Combined Sewer Systems.” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, West Palm Beach, FL, May 22-26, 2016.
  4. Elayeb, I., and Leon, A. S. (2016). “An experimental study on air- and CO2 based geyser flows” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, April 18, 2016.
  5. Hosseini, P., Chen D., Leon, A. S. and Gibson N. (2016). “Optimization of reservoir operation considering uncertain decision variables.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, April 18, 2016.
  6. Choi, Y., Leon, A. S., and Apte, S. (2016). “A one-dimensional numerical model for predicting pressure and velocity oscillations due to buoyancy of a compressed air-pocket in a vertical shaft” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, April 18, 2016.
  7. Elayeb, I., and Leon, A. S. (2016). “An experimental study of geyser occurrence in combined sewer systems” Poster presented in the Oregon State COE Graduate Student Research Expo, Portland, March 01, 2016.
  8. Choi, Y., Leon, A. S., and Apte, S. (2016). “A one-dimensional numerical model for predicting pressure and velocity oscillations due to buoyancy of a compressed air-pocket in a vertical shaft.” Poster presented in the Oregon State COE Graduate Student Research Expo, Portland, March 01, 2016.
  9. Hosseini, P., Chen, D. Leon, A. S., Gibson, N. (2016). “Robust Optimization of Reservoir Operation Considering Uncertainty of Inflows and Flexible Decision Variables.” Poster presented in the Oregon State COE Graduate Student Research Expo, Portland, March 01, 2016.
  10. Alnahit, A. O., and Leon, A. S. (2015). “A Remotely Controlled Siphon System for Dynamic Water Storage Management.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  11. Choi, Y., Leon, A. S., and Apte, S. (2015). “A one-dimensional numerical model for predicting pressure and velocity oscillations of a compressed air-pocket in a vertical shaft.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  12. Hosseini, P., Chen, D., Leon, A. S. and Gibson, N. (2015). “Flexible Decision Variables in Short-term Operation of Reservoirs Using Dimension Reduction Approach.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  13. Elayeb, I. S., Leon, A. S., Choi, Y., and Alnahit, A. O. (2015). “An experimental study of geyser-like flows induced by a pressurized air pocket.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  14. Chen, D., Leon, A. S., Hosseini, P., and Gibson, N. (2015). “Robust multi-objective optimization for short-term reservoir operation under inflow uncertainty.” Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 14-18, 2015.
  15. Hosseini, P., and Leon, A. S. (2015). “Multi-Objective Optimization of Reservoir Operation Considering Flexibility in Decision Variables.” Poster presented in the OSU College of Engineering Research Engineering Expo, Portland, March 04, 2015. Parnian received the Runner-up Award (School of Civil and Construction Engineering).
  16. Choi, Y., Leon, A. S., and Apte, S. (2014). “Predicting Air-Water Geysers and their Implications on Reducing Combined Sewer Overflows. Poster presented in the American Geophysical Union Fall Meeting, San Francisco, California, December 15-19, 2014.
  17. Livingston, G. E., Leon, A. S. and Babbar-Sebens, M. (2014). “Oregon BEST Lab: OSU-Benton County, Green Stormwater Infrastructure Research Facility.” Poster presented in the Oregon BEST FEST, Portland, Oregon, September 15th –16th, 2014.
  18. Livingston, G. E., Babbar-Sebens, M. and Leon, A. S. (2014). “Green Infrastructure for Stormwater Treatment.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  19. Choi, Y., Leon, A. S., and Apte, S. (2014). “Three-Dimensional Numerical Study of the Turbulent Flow Structures Present in Air-Water Geyser Flows.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  20. Hosseini, P., and Leon, A. S. (2014). “A Multi-Objective Optimization for the Operation of Multi-Reservoir Systems under Uncertainty.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  21. Gomez, L., Lee, H. W, and Leon, A. S. (2014). “A Domain Decomposition strategy for Unsteady Flow Routing in River Systems.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 12, 2014.
  22. Hosseini, P., and Leon, A. S. (2014). “Effects of small tidal-type waves on average flow discharge in mild-sloped rivers and canals.” Poster presented in the OSU College of Engineering Research Engineering Expo, Portland, OR, 2014.
  23. Hosseini, P., Leon, A. S. and Chen D. (2014). “A Framework for Optimizing Short-time Operation of Multiple Reservoirs with Multi-objectives Under Uncertainty.” Poster presented in the OSU College of Engineering Research Engineering Expo, Portland, OR, 2014.
  24. Leon, A. S., Gifford-Miears C. and Gomez L. (2013). “Unsteady flow routing using Performance Graphs based on two-dimensional hydrodynamic simulations” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati OH, May 19-22, 2013.
  25. Leon, A. S. and Choi Y. (2013). “A new numerical model that preserves “lake at rest” conditions in open-channel and surcharged flows in steep-slope closed conduit systems” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati OH, May 19-22, 2013.
  26. Gomez, L., Lee, H. W, and Leon, A. S. (2013). “A real options-based framework to evaluate investments in river flood control under uncertainty.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013.
  27. Gomez, L., and Leon, A. S. (2013). “The OSU Rivers Model and its Comparison with the Unsteady HEC-RAS Model.” Poster presented in the Water Research Symposium, Oregon State University, Corvallis, Oregon, May 13, 2013.
  28. Leon, A. S., Gichamo, T. Z., Valverde, R., and Rask, J. (2012). “Hydraulic performance graph-based model for unsteady flow simulations in topologically complex river networks.” Poster presented in the XIX International Conference on Computational Methods in Water Resources (CMWR), University of Illinois at Urbana-Champaign, Urbana, Illinois, June 17-21, 2012.
  29. Choi, Y., and Leon, A. S. (2012). “Design, Analysis and Implementation of Multipurpose River Research Facility at O.H. Hinsdale Wave Research Laboratory.” Poster presented in the 2012 Water Research Symposium, Oregon State University, Corvallis, Oregon, May 18, 2012.
  30. Bernedo C., Salas, J. and Leon, A. S. (2012). “Considering climate uncertainties to determine hydrologic design criteria – Does traditional Rainfall-Frequency Analysis works?” Poster presented in the ASCE-EWRI World Environmental & Water Resource Congress, Albuquerque, NM, May 20-24, 2012.

SHORT COURSES

  1. Leon, A. S. (2015) Workshop on “Overview of the OSU-OUU model and its Application to the Columbia River System”, 2 hours, held at Bonneville Power Administration Headquarters, Portland, OR, July 22, 2015.
  2. Leon, A. S. (2013) short course on “Flow Dynamics in Combined Storm-sewer Systems. Modeling needs and Application of the Illinois Transient Model (ITM)”, 8 hours, held at City of Portland, Environmental Services, Portland, OR, October 25, 2013.
  3. Leon, A. S. (2010) “Modeling of flows in Combined Storm-sewer Systems”, 4 hours, held at the ASCE EWRI World Environmental & Water Resource Congress, Providence, Rhode Island, May 16, 2010.
  4. Leon, A. S. (2010) “Unsteady flow modeling using HEC-RAS”, 16 hours, held at Montgomery Watson and Harza Engineering (MWH), Denver, Colorado, August 21 and 23, 2010.

Ph. D. THESIS

Leon A. S. (2006) “Improved Modeling of Unsteady Free Surface, Pressurized and Mixed Flows in Storm-sewer Systems.”, Ph.D. thesis, University of Illinois at Urbana-Champaign.  Advisors: Dr. Marcelo García (University of Illinois at Urbana-Champaign) and Dr. Mohamed Ghidaoui (Hong Kong University of Science and Technology). [see PDF]


M. S. THESIS 

Leon, A. S. (2000) “Local scour around cylindrical piers in non-cohesive beds (In Spanish).”, Advisor: Dr. Francisco Coronado (Ph.D., Massachusetts Institute of Technology (MIT)).


CIVIL ENGINEER THESIS

Leon, A. S. (1998) “The hydraulic design of a bottom rack type intake in a supercritical regime and software applications (In Spanish).”, Advisors: Prof. Erasmo Matos, Dr. Francisco Coronado (MIT).


RECENT REPORTS
  1. Leon, A. S. (2017). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Final Report prepared for the U.S. Environmental Protection Agency.
  2. Leon, A. S., and other nine authors (2017). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 4”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  3. Leon, A. S., and other nine authors (2017). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 3”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  4. Leon, A. S., and other eight authors (2016). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 2”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  5. Leon, A. S., and Choi Y. (2016). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 4 prepared for the U.S. Environmental Protection Agency (primary author).
  6. Leon, A. S., and other eight authors (2016). “Framework for Quantification of Risk and Valuation of Flexibility in the FCRPS – Stage gate 1”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  7. Leon, A. S., and other nine authors (2015). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty – Final Report, Software and Other Deliverables.”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  8. Leon, A. S., and Choi Y. (2015). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 3 prepared for the U.S. Environmental Protection Agency (primary author).
  9. Babbar-Sebens M. and Leon, A. S. (2015). “Improving sustainability of urban streets via rain gardens – How effective are these practices in the Pacific Northwest?”, Final Project Report prepared for the Pacific Northwest Transportation Consortium (PacTrans), USDOT University Transportation Center for Federal Region 10, University of Washington.
  10. Leon, A. S., and other nine authors (2015). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 6”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  11. Leon, A. S., and other nine authors (2014). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 5”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  12. Leon, A. S., and Choi Y. (2014). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 2 prepared for the U.S. Environmental Protection Agency (primary author).
  13. Leon, A. S., and other nine authors (2014). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 4”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  14. Leon, A. S., and other nine authors (2013). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 3”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  15. Leon, A. S., and Choi Y. (2013). “Prediction and quantification of CSOs in combined sewer systems under extreme storm events: Extreme events, Flow dynamics, Reduction of CSOs”, Progress Report Year 1 prepared for the U.S. Environmental Protection Agency (primary author).
  16. Leon, A. S., and other nine authors (2013). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 2”, Report prepared for the Bonneville Power Administration, US Department of Energy (primary author).
  17. Leon, A. S., and Oberg, N. (2013). “User's manual for Illinois Transient Model-two equation model v. 1.3. A Model for the Analysis of Transient Free surface, Pressurized and Mixed flows in Storm-sewer Systems”, Oregon State University, Corvallis.
  18. Leon, A. S., and other nine authors (2012). “Development of a state-of-the-art computational framework and platform for the optimal control of multi-reservoir systems under uncertainty - Stage gate 1”, Report prepared for the Bonneville Power Administration, US Department of Energy.
  19. Leon, A. S., and Oberg, N. (2010). “User's manual for Illinois Transient Model-two equation model. A Model for the Analysis of Transient Free surface, Pressurized and Mixed flows in Storm-sewer Systems. Version 1.2”.
  20. Leon, A. S., and Oberg, N. (2009). “Illinois Transient Model Programmer's Manual”, University of Illinois at Urbana-Champaign.
  21. Leon, A. S., Oberg, N., Choi, N.J., Schmidt, A., and García, M.H., 2009. "Transient Analysis of the Calumet TARP System" Report prepared for the Metropolitan Water Reclamation District of Greater Chicago. University of Illinois at Urbana-Champaign, Civil Engineering Studies, Hydraulic Engineering Series.
  22. Cataño-Lopera  Y. A., Oberg N., Choi N. J., Schmidt, A. R., Leon, A. S., and Garcia, M. H. (2009). “Hydraulic Conveyance Analysis of the Tarp Calumet System." Report prepared for the Metropolitan Water Reclamation District of Greater Chicago. University of Illinois at Urbana-Champaign, Civil Engineering Studies, Hydraulic Engineering Series.
  23. Leon, A. S., and Oberg, N. (2009). “User's manual for Illinois Transient Model-two equation model v. 1.1. A Model for the Analysis of Transient Free surface, Pressurized and Mixed flows in Storm-sewer Systems”, University of Illinois at Urbana-Champaign.
  24. Oberg, N., Schmidt, A., Leon, A. S., Waratuke, A., and García, M.H., 2008. "Illinois Hydraulic Conveyance Analysis Program: ICAP." Report prepared for the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC). University of Illinois at Urbana-Champaign, Civil Engineering Studies, Hydraulic Engineering Series No. 81, ISSN: 0442-1744.
  25. Leon, A. S., Christensen, D. R., Schmidt, A. R., and García, M. H. (2007). “Illinois Transient Model (One-equation model) user's manual. A Model for the Analysis of Unsteady Free surface, Pressurized and Mixed flows in Storm-sewer Systems”, University of Illinois at Urbana-Champaign.
  26. García, M. H., Leon, A. S., Ancalle, C. (2007) “Sedimentation analysis of Valenciano reservoir, Juncos, Puerto Rico”, Prepared by CA Engineering for CSA Group, San Juan, Puerto Rico.
  27. García, M. H., Leon, A. S., Ancalle, C. (2007) “Safe yield Analysis of Valenciano reservoir, Juncos, Puerto Rico”, Prepared by CA Engineering for CSA Group, San Juan, Puerto Rico.
  28. Leon, A. S., Schmidt, A. R., Ghidaoui, M. S. and García, M. H. (2006) “Review of sewer surcharging phenomena and models." University of Illinois at Urbana-Champaign. Civil Engineering Studies, Hydraulic Engineering Series No. 78.
  29. García, M. H., Niño, Y., Abad, J. D., Cantero, M., Leon, A. S., Manzini, S., Sequeiros, O. (2003) “Sedimentation management in combined sewer overflow storage reservoirs using water jets." University of Illinois at Urbana-Champaign. Report to Metropolitan Water Reclamation District of Greater Chicago.

Presentations to Professional Groups

Invited-Keynote

  1. Keynote Talk, XXIV Congreso Nacional de Estudiantes de Ingenieria Civil del Perú (http://coneic2016.com/), Ayacucho, Peru, “State-of-the-art strategies on flood mitigation, reservoir operation and control of geyser eruptions in stormwater and combined sewer systems,” August 2016
  2. Keynote Talk, Pacific Northwest Waterways Association (PNWA) Summer Conference, Hood River, OR, “Development of a Computational Framework for the Optimal Control of Multi-Reservoir Systems Under Uncertainty: Application to the Columbia River System”, June 2015
  3. Keynote Talk, X Congreso Latinoamericano de Estudiantes de Ingenieria Civil - XXII Congreso Nacional de Estudiantes de Ingenieria Civil del Perú (http://www.coleic-coneic2014.com/), Arequipa, Peru, “Recent advances on Flood Control, Reservoir Operation and Transient Flows,” August 2014

Invited-Other

  1. Invited Talk, Center for Thermo-Fluid Mechanics Seminar, University of Houston, Houston, TX, “Violent Geysers in Stormwater and Combined Sewer Systems: Experimental and Numerical Modeling,” April 2017.
  2. Invited Talk, Harris County Flood Control District, Houston, TX, “Flood Control Research and Applications,” March 2017.
  3. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Framework for Quantification of Risk and Valuation of Flexibility in the Federal Columbia River Power System (FCRPS),” January 2017.
  4. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Framework for Quantification of Risk and Valuation of Flexibility in the Federal Columbia River Power System (FCRPS),” January 2016.
  5. Invited Talk, Changjiang River Scientific Research Institute (CRSRI), Wuhan, Hubei, China, “Recent Advances on Flood Control and Reservoir Operation”, May 2015. 
  6. Invited Talk, Winter Seminar Series, Water Resources Graduate Program, Oregon State University, Corvallis, OR,“Development of Computer Models for the Optimal Control of Multi-Reservoir Systems Under Uncertainty: Application to the Columbia River System,” March 2015
  7. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Development of a computational framework and platform for the optimal control of multi-reservoir systems under uncertainty,” January 2015
  8. Invited Talk, Geosyntec, Portland, OR, “Stormwater and Reservoir Operation Research and Potential Collaborations between OSU and Geosyntec,” June 2014
  9. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland, OR, “Development of a computational framework and platform for the optimal control of multi-reservoir systems under uncertainty,” January 2014
  10. Invited Talk, EPA RESEARCH FORUM: Extreme Event Impacts on Air Quality and Water Quality with a Changing Global Climate, Arlington, VA, “Prediction and quantification of CSOs under extreme storm events: Flow dynamics and Reduction of CSOs,” February 2013
  11. Invited Talk, Technology Innovation Summit, Bonneville Power Administration, Portland OR “Development of a computational framework and platform for the optimal control of multi-reservoir systems under uncertainty,” January 2013
  12. Invited Talk, Reservoir System Modeling Technologies Conference, Bonneville Power Administration, Portland, OR, “A Computationally Efficient and Robust Approach for Multi-objective Operation of Multi-reservoir systems Subjected to Multiple Constraints,” February 2012
  13. Invited Talk, Winter Seminar Series, Department of Mathematics, Oregon State University, Corvallis, OR,Towards the intelligent control of river flooding. Harmonizing long-term objectives with the flooding objective,” February 2012
  14. Invited Talk, Universidad Nacional San Cristobal de Huamanga, Ayacucho, Peru, “Real-time Control of Multi-Objective and Multi-Reservoir Systems,” December 2011
  15. Invited Talk, Universidad Nacional de Ingenieria, Lima, Peru, “Real-time Control of Multi-Objective and Multi-Reservoir Systems,” December 2011
  16. Invited Talk, Bonneville Power Administration (BPA), Portland, Oregon, “Towards Real-time Control of Multi-objective and Multi-Reservoir Systems,” October 2011
  17. Invited Talk, Ecosystem Informatics at Oregon State University (IGERT), Corvallis, OR, “Towards Real-time Control of Multi-objective and Multi-Reservoir Systems,” May 2011
  18. Invited Talk, Universidad Nacional de Ingenieria, Lima, Peru, “Modeling of Combined Sewer Systems,” December 2010
  19. Invited Talk, Montgomery Watson and Harza Engineering (MWH), Denver, CO, “Modeling of Unsteady Flows using HEC-RAS,” July 2010
  20. Invited Talk, Oregon State University, Corvallis, OR, “Towards Real-time Control of Reservoir Systems,” May 2010
  21. Invited Talk, University of Idaho, Boise, Idaho, “Application of Genetic Algorithms to the Operation of Reservoir Systems,” May 2010
  22. Invited Talk, Boise State University, Boise, ID, “Towards Real-time Control of Combined Sewer Systems,” March 2009
  23. Invited Talk, University of Illinois at Urbana-Champaign, Urbana, IL, “A mathematical and numerical model for the simultaneous occurrence of free surface and pressurized flows,” May 2006
  24. Invited Talk, Universidad Nacional de Ingenieria, Lima, Peru, “Transient flows in Combined Sewer Systems,” December 2005
  25. Invited Talk, I Conference in Hydraulics of Rivers and Channels, Lima, Peru, “Special Topics in Unsteady Flows and its Applications to Hydraulic Engineering,” December 2004
  26. Invited Talk, I Conference in Hydraulics of Rivers and Channels, Lima, Peru, “Special Topics in Unsteady Flows and its Applications to Hydraulic Engineering,” December 2004
  27. Invited Talk, Universidad Nacional San Cristobal de Huamanga, Ayacucho, Peru, “Unsteady transition between free surface and pressurized flows (In Spanish),” December 2004

Non-invited (Contributed Talks)

  1. Contributed Talk, 37th IAHR World Congress, Kuala Lumpur, Malaysia, “Mechanisms that lead to the occurrence of violent geysers in storm water and combined sewer systems”, August 2017.
  2. Contributed Talk, 37th IAHR World Congress, Kuala Lumpur, Malaysia, “Dynamic management of water storage of wetlands and shallow ponds for flood control”, August 2017.
  3. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Sacramento CA, “Why Violent Geysers Occur in Stormwater and Combined Sewer Systems,” May 2017.
  4. Contributed Talk, 6th International Symposium on Hydraulic Structures, Portland OR, “Determining Optimal Discharge and Optimal Penstock Diameter in Water Turbines,” June 2016.
  5. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, West Palm Beach, FL, “New Evidences on the Causes of Explosives Geysers in Stormwater and Combined Sewer Systems: A Simplified Model for Prediction of These Geysers,” May 2016.
  6. Contributed Talk, International Conference on Water Management Modeling, Toronto Canada, “New insights on the causes of explosives geysers in stormwater and combined sewer systems: A model for their prediction.,” February 2016
  7. Contributed Talk, American Geophysical Union Fall Meeting, San Francisco CA, “Minimizing water consumption when producing hydropower,” December 2015.
  8. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Portland OR, “Effects of Small Tidal-type Waves on Rating Curves in Rivers,” June 2014.
  9. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Portland, OR, “A Dimensional Analysis for Determining Optimal Discharge and Optimal Penstock Diameter in Impulse and Reaction Water Turbines,” June 2014.
  10. Contributed Talk, AWRA Annual Water Resources Conference, Portland, OR, “Development of a State-of-the-Art Computational Framework for the Optimal Control of Multi-Reservoir Systems Under Uncertainty,” November 2013.
  11. Contributed Talk, City of Portland, Environmental Services, Portland OR, “Flow Dynamics in Combined Storm-sewer Systems. Modeling needs and Application of the Illinois Transient Model (ITM),” October 2013..
  12. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Cincinnati, OH, “A Framework for Propagation of Uncertainty in River Systems,” May 2013
  13. Contributed Talk, XIX International Conference on Computational Methods in Water Resources (CMWR), Urbana, IL, “Toward Reduction of Uncertainty in Complex Multi-reservoir River Systems,” June 2012
  14. Contributed Talk, XIX International Conference on Computational Methods in Water Resources (CMWR), Urbana, IL, “Towards the Intelligent Control of River Flooding. Harmonizing Long-term Objectives (e.g., irrigation, hydropower) with the Flooding Objective,” June 2012
  15. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Albuquerque, NM, “A Robust, Numerically Efficient Model for Unsteady Flow Routing in Topologically Complex River Networks,” May 2012
  16. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Albuquerque, NM, “Towards the Intelligent Control of River Flooding,” May 2012
  17. Contributed Talk, Oregon Water Conference, Corvallis, OR, “A Novel Physically-based Framework for the Intelligent Control of River Flooding,” May 2011
  18. Contributed Talk, Watershed Management Conference, Theme: "Innovations in Watershed Management Under Land Use and Climate Change", Madison, WI, “A New Coupled Optimization-hydraulic Routing Model for Real-time Operation of Highly Complex Regulated River Systems,” August 2010
  19. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Providence, RI, “Flow Dynamics in Combined Storm-Sewer Systems: Application of the Illinois Transient Model (ITM) to the Calumet TARP System in Chicago, Illinois,” May 2010
  20. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Kansas City, MO, “A Robust and Fast Model for Simulating Street Flooding,” May 2009
  21. Contributed Talk, ASCE-EWRI World Environmental & Water Resource Congress, Kansas City, MO, “Boundary Conditions for Simulating Complex Storm-sewer Systems in Free Surface, Pressurized, and Mixed Flow Conditions,” May 2009
  22. Contributed Talk, 10th International Conference on Pressure Surges, BHR Group, Edinburgh, United Kingdom “A Shock-capturing Approach for Simulating Gravity Flows, Pressurized Flows and the Simultaneous Occurrence of Gravity and Pressurized Flows,” May 2008
  23. Contributed Talk, World Water and Environmental Resources Congress, Honolulu HI, “A Finite Volume Model for Mixed Free Surface-pressurized Flows in Drainage Systems,” May 2008
  24. Contributed Talk, World Water and Environmental Resources Congress, Honolulu HI, “Experimental and CFD Modeling of a Vortex Flow Restrictor,” May 2008
  25. Contributed Talk, 5th International Symposium on Environmental Hydraulics, Tempe AZ “Godunov-type Solutions for Two-phase Water Hammer Flows,” December 2007
  26. Contributed Talk, Annual Illinois Water Conference, Urbana IL, “Towards Modeling for Real-time Control of Combined Sewer Overflow Systems: Application to the Calumet TARP System in Chicago, Illinois,” October 2006
  27. Contributed Talk, I International Congress of Hydraulics, Hydrology and Environment, Lima, Peru “Efficient Numerical Modeling of One and Two-phase Transient Flows (In Spanish),” June 2006
  28. Contributed Talk, I International Congress of Hydraulics, Hydrology and Environment, Lima, Peru, “New Numerical Model for the Simultaneous Simulation of Unsteady Free Surface and Pressurized Flows (In Spanish),” June 2006
  29. Contributed Talk, World Environmental & Water Resources Congress, Omaha NE, “An Efficient Numerical Scheme for the Modeling of Two-phase Bubbly Homogeneous Air-water Mixtures,” May 2006
  30. Contributed Talk, XXXI IAHR Congress, Seoul, Korea, “Importance of Numerical Efficiency for Real-Time Control of Transient Gravity Flows in Sewers,” September 2005
  31. Contributed Talk, XIV National congress of Civil Engineering, Iquitos, Peru, “One-dimensional Modeling of the Intrusion of Contaminants for Conservative Substances in Non-permanent and Non-uniform Flows (In Spanish),” September 2003
  32. Contributed Talk, Instituto de la Construcción y Gerencia, Lima, Peru, “Alternative of Hydraulic Design for Intakes in Steep Rivers and Large Transport of Boulders (In Spanish),” August 2002
  33. Contributed Talk, XII National congress of Civil Engineering, Huánuco, Peru, “Local Scour around Cylindrical Piers in Non-cohesive Beds (In Spanish),” September 1999

Participation at Invitational Workshops

  • ExCEEd Teaching Workshop, American Society of Civil Engineers (ASCE), United States Military Academy at West Point, New York, July 22-27, 2012.

  • CMMI CAREER Proposal Writing Workshop, National Science Foundation, University of Nevada, Reno, March 26, 2012

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