Committee Chair

Bathi, Jejal

Committee Member

Ghasemi, Arash; Wu, Weidong; Owino, Joseph; Fomunung, Ignatius; Onyango, Mbakisya A.

Department

Dept. of Civil and Chemical Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

The Environmental Protection Agency's (EPA) Environmental Fluid Dynamics Code (EFDC) is a widely used hydrodynamics model that is no longer up to date with modern technology. As part of this research, an automated MATLAB based structured grid generator for EFDC was developed and was tested by developing a test model for Tennessee River near Chattanooga area. The test model was developed for a 9.92 km long segment of the Tennessee River starting from the downstream of the Chickamauga dam to upstream of Moccasin island. The model was calibrated against measured water flows, velocities and gage heights from January 1 to June 27, 2008. The Nash-Sutcliffe coefficients for velocities and gage heights were 0.788 and -6.61 respectively. Overall the model could simulate the field condition effectively. However, a detailed bathymetry is required, and the current limitation of the grid generators manual adjustments need to be addressed to produce better simulation results.

Acknowledgments

I would like to thank Dr. Bathi for his guidance and for giving me the chance to work under his supervision. It has been a great honor for me to work with him. My sincere appreciation also goes to Dr. Arash Ghasemi and Mr. Babatunde Atolagbe for their collaboration in this research. This research was partially supported by the U.S. Geological Survey under Grant/Cooperative Agreement No. G16AP00084 and the Center of Excellence in Applied Computational Science and Engineering (CEACSE). Finally, I am thankful to my parents and friends who shared my enthusiasm and helped me go through my disappointments.

Degree

M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.

Date

5-2020

Subject

Hydrodynamics; Numerical grid generation (Numerical analysis); Streamflow; Tennessee River

Keyword

EFDC; Grid generation; Hydrodynamic model

Document Type

Masters theses

DCMI Type

Text

Extent

xii, 53 leaves.

Language

English

Rights

http://rightsstatements.org/vocab/InC/1.0/

License

http://creativecommons.org/licenses/by/4.0/

Date Available

1-1-2021

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