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 | |
| State | Published - Dec 1 2015 |
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Keywords
- Delft3D
- Marsh area
- Three-dimensional modeling
- Tidal flow
- Vegetation
ASJC Scopus subject areas
- Water Science and Technology
- Civil and Structural Engineering
- Mechanical Engineering
Cite this
Three-dimensional hydrodynamic simulation of tidal flow through a vegetated marsh area. / Al-Asadi, Khalid; Duan, Guohong.
In: Journal of Hydraulic Engineering, Vol. 141, No. 12, 06015014, 01.12.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Three-dimensional hydrodynamic simulation of tidal flow through a vegetated marsh area
AU - Al-Asadi, Khalid
AU - Duan, Guohong
PY - 2015/12/1
Y1 - 2015/12/1
N2 - 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.
AB - 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.
KW - Delft3D
KW - Marsh area
KW - Three-dimensional modeling
KW - Tidal flow
KW - Vegetation
UR - http://www.scopus.com/inward/record.url?scp=84947705985&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947705985&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)HY.1943-7900.0001052
DO - 10.1061/(ASCE)HY.1943-7900.0001052
M3 - Article
VL - 141
JO - Journal of Hydraulic Engineering
JF - Journal of Hydraulic Engineering
SN - 0733-9429
IS - 12
M1 - 06015014
ER -