Modeling the Effects of Coastal Vegetation in Mitigating Tsunami and Flood Current

In order to protect coastal regions effective natural strategies are needed because of increasing intensity and frequency of tsunami and flood events. This study aims to explore the role of coastal vegetation for mitigating the tsunami and flood induced currents. To simulate interaction between tsunami waves and coastal vegetation, a detailed model is developed with the help of ANSYS FLUENT by using Computational Fluid Dynamics (CFD) techniques in this study. Critical flow characteristic such as velocity is the focus of simulations. To see that how the tree structure effects the reduction of tsunami and flood currents, the model incorporated different configurations of coastal vegetation (Linear and Staggered Arrangement). In case of linear arrangement, the highest increased value of velocity has found to be 32% of inlet velocity. On the other hand, in case of staggered arrangement the highest increased value of velocity has found to be 39.6% of inlet velocity.