Numerical Simulations of Tsunami Wave Generation by Submarine Landslides: Validation and Sensitivity Analysis to Landslide Parameters

Submarine landslide-generated waves have been responsible for significant damage to coastal communities worldwide. Despite this, the existing knowledge on mechanism of phenomenon is limited that can be partly attributed absence adequate validated numerical models. In this study, we applied and a Computational Fluid Dynamics model (FLOW3D-Hydro) used it investigating sensitivity variations different parameters. This study solid-block submarine landslides moving downward at fixed slope angle 45°. We conducted 177 simulations applying by using three sliding block sizes (small, medium, large). The experiments revealed an inverse exponential relationship between maximum initial landslide amplitude both submergence depth travel distance. observed dominant wave period generated large was 0.7 s whereas 1.1 small block; unexpected result could relatively lower velocity mass case smaller block.