Simulation of flow and sediment transport in vegetated channels - Computational River Dynamics - page 396

mesh consisted of 461 nodes streamwise and 41 nodes laterally, part of which is shown
in Fig. 10.11(b). The depth- averaged 2-D k - ε turbulence model with c fk = 1.0 and

c f ε = 1.33 was used. The drag coefficient C d was set as 0.8, 1.0, 1.2, 1.8, and 3.0

for the runs with vegetation concentrations of 0.04%, 0.2%, 0.6%, 2.5%, and 10%,

Figure 10.12 Calculated flow fields around alternate vegetation zones.

Figure 10.13 Measured and calculated velocities around alternate vegetation zones.