Surendra Pathak, P.E., M.ASCE - Academia.edu (original) (raw)

Surendra Pathak, P.E., M.ASCE

Civil/Geotechnical/Water Resources Engineer

less

Uploads

Papers by Surendra Pathak, P.E., M.ASCE

Research paper thumbnail of Comparison of Two Hydrodynamic Models

Abstract. This paper presents a comparison of two hydrodynamic models of the Weeks Bay sub-estuar... more Abstract. This paper presents a comparison of two hydrodynamic models of the Weeks Bay sub-estuary (Alabama, USA). One model was developed using the Environmental Fluid Dynamic Code (EFDC). The resulting model was compared to an existing hydrodynamic model (of the same water body) that was developed using the Adaptive Hydraulic modeling system (ADH). Comparisons were performed in terms of predicted water surface elevations in Weeks Bay. The computational grid was created using GEFDC (a mesh generator for EFDC) and NOAA’s coastline and bathymetric data. The results showed that the EFDC model provides comparable water surface elevation (WSE) estimations for five out of seven control points located in the Weeks Bay study area. R 2 values for those points range between 0.88 and 0.99. Root mean square error values are shown to be lower than 0.15 m in those cases. For the rest of the control points, R 2 values range from 0.73 to 0.87 (RMSE range: 0.2- 0.35), showing that the EFDC model pr...

Research paper thumbnail of Application of 2D Hydrodynamic and Sediment Transport Model AdH in Weeks Bay, Alabama

Research paper thumbnail of Engineering Geological Analyses for Upper Hewa Khola Hydropower Project, Nepal

Research paper thumbnail of Calculation of Water Surface Elevation Using HECRAS 4.1.0 for Fixing Tailwater Elevation for Powerhouse Site in Planned 37 MW Kabeli "A" Hydroelectric Project, Nepal

The user has requested enhancement of the downloaded file.

Research paper thumbnail of Comparison of Two Hydrodynamic Models of Weeks Bay, Alabama 56 PUBLICATIONS 115 CITATIONS SEE PROFILE

This paper presents a methodology for using hydrodynamic modeling to estimate inundation areas an... more This paper presents a methodology for using hydrodynamic modeling to estimate inundation areas and water depths during a hurricane event. The Environmental Fluid Dynamic Code (EFDC) is used in this research. EFDC is one of the most commonly applied models to Gulf of Mexico estuaries. The event with which the hydrodynamic model was tested was hurricane Ivan. This hurricane made landfall at the Alabama Gulf Coast in September 16, 2004. Hurricane Ivan was the most severe hurricane to hit eastern Alabama. Results show that the EFDC model is able to generate instances of flooded areas before, during and after a hurricane event (Ivan hurricane). The model also estimated water depths and water surface elevation values consistent to measured data reported in the literature, and comparable to model-estimated data from a mesoscale Slosh model for the region (also reported in the literature).

Research paper thumbnail of Comparison of Two Hydrodynamic Models

Abstract. This paper presents a comparison of two hydrodynamic models of the Weeks Bay sub-estuar... more Abstract. This paper presents a comparison of two hydrodynamic models of the Weeks Bay sub-estuary (Alabama, USA). One model was developed using the Environmental Fluid Dynamic Code (EFDC). The resulting model was compared to an existing hydrodynamic model (of the same water body) that was developed using the Adaptive Hydraulic modeling system (ADH). Comparisons were performed in terms of predicted water surface elevations in Weeks Bay. The computational grid was created using GEFDC (a mesh generator for EFDC) and NOAA’s coastline and bathymetric data. The results showed that the EFDC model provides comparable water surface elevation (WSE) estimations for five out of seven control points located in the Weeks Bay study area. R 2 values for those points range between 0.88 and 0.99. Root mean square error values are shown to be lower than 0.15 m in those cases. For the rest of the control points, R 2 values range from 0.73 to 0.87 (RMSE range: 0.2- 0.35), showing that the EFDC model pr...

Research paper thumbnail of Application of 2D Hydrodynamic and Sediment Transport Model AdH in Weeks Bay, Alabama

Research paper thumbnail of Engineering Geological Analyses for Upper Hewa Khola Hydropower Project, Nepal

Research paper thumbnail of Calculation of Water Surface Elevation Using HECRAS 4.1.0 for Fixing Tailwater Elevation for Powerhouse Site in Planned 37 MW Kabeli "A" Hydroelectric Project, Nepal

The user has requested enhancement of the downloaded file.

Research paper thumbnail of Comparison of Two Hydrodynamic Models of Weeks Bay, Alabama 56 PUBLICATIONS 115 CITATIONS SEE PROFILE

This paper presents a methodology for using hydrodynamic modeling to estimate inundation areas an... more This paper presents a methodology for using hydrodynamic modeling to estimate inundation areas and water depths during a hurricane event. The Environmental Fluid Dynamic Code (EFDC) is used in this research. EFDC is one of the most commonly applied models to Gulf of Mexico estuaries. The event with which the hydrodynamic model was tested was hurricane Ivan. This hurricane made landfall at the Alabama Gulf Coast in September 16, 2004. Hurricane Ivan was the most severe hurricane to hit eastern Alabama. Results show that the EFDC model is able to generate instances of flooded areas before, during and after a hurricane event (Ivan hurricane). The model also estimated water depths and water surface elevation values consistent to measured data reported in the literature, and comparable to model-estimated data from a mesoscale Slosh model for the region (also reported in the literature).

Log In