Three-Dimensional Simulation of Tidal Flow in Vegetated Marsh Area

Khalid Al-Asadi, Guohong Duan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Simulation of tidal flow in 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 the Delft3D-FLOW open source program. To quantify time varying roughness coefficients, five empirical equations for calculating Manning's roughness coefficient (n) were incorporated in the Delft3D-FLOW program in addition to two options offered by this program to calculate the Chezy's C coefficient. Water surface elevations (WSE) at several locations within the study area are calculated and compared with the corresponding observed data. Results showed that the equations accounting for the degree of submergence and the vegetation frontal area give the closet matches with the observed data. The vegetation frontal area for freshwater marsh grass dominated by Panicum hemitomon type ranges from 8.16 to 11.22 m<sup>-1</sup>.

Original languageEnglish (US)
Title of host publicationWorld Environmental and Water Resources Congress 2014: Water Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1422-1431
Number of pages10
ISBN (Print)9780784413548
DOIs
StatePublished - 2014
EventWorld Environmental and Water Resources Congress 2014: Water Without Borders - Portland, United States
Duration: Jun 1 2014Jun 5 2014

Other

OtherWorld Environmental and Water Resources Congress 2014: Water Without Borders
CountryUnited States
CityPortland
Period6/1/146/5/14

ASJC Scopus subject areas

  • Water Science and Technology

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    Al-Asadi, K., & Duan, G. (2014). Three-Dimensional Simulation of Tidal Flow in Vegetated Marsh Area. In World Environmental and Water Resources Congress 2014: Water Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress (pp. 1422-1431). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784413548.143