Three-dimensional hydrodynamic simulation of tidal flow through a vegetated marsh area

Khalid Al-Asadi; Guohong Duan

doi:10.1061/(ASCE)HY.1943-7900.0001052

Three-dimensional hydrodynamic simulation of tidal flow through a vegetated marsh area

Khalid Al-Asadi, Guohong Duan

Civil Engineering and Engineering Mechanics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Simulation of tidal flow in an estuarine marsh area is challenging because of resistance from spatially and temporally varied vegetation. This study simulated the tidal flow in the Davis Pond marsh area near New Orleans, Louisiana, using an open source program. To quantify the time-varying roughness coefficient, four empirical equations for calculating Manning's roughness coefficient were incorporated into the program in addition to two options offered by the program to calculate the Chezy's coefficient and one option to use the modified momentum equations and the k-ε turbulence model. Results showed that the time-varying roughness coefficient equations accounting for both the degree of submergence and the vegetation frontal area gave the closest matches with the observed data.

Original language	English (US)
Article number	06015014
Journal	Journal of Hydraulic Engineering
Volume	141
Issue number	12
DOIs	https://doi.org/10.1061/(ASCE)HY.1943-7900.0001052
State	Published - Dec 1 2015

Keywords

Delft3D
Marsh area
Three-dimensional modeling
Tidal flow
Vegetation

ASJC Scopus subject areas

Water Science and Technology
Civil and Structural Engineering
Mechanical Engineering

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10.1061/(ASCE)HY.1943-7900.0001052

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