Wave and Vegetation Modeling
The effects of vegetation on wave setup and runup are investigated by numerical experiments. A parametric model of the phase-averaged depth-integrated drag force is proposed and implemented into CSHORE. The model is tested using measured wave setup in the laboratory with vegetation. Numerical results show that the modeled wave setup agrees well with the measurements. Vegetation also leads to considerable reduction in wave runup. The reduction rates strongly depend on the wave conditions and vegetation properties. A larger vegetation field and taller plant height will lead to greater reductions in wave height, wave setup and wave runup.