Modeling of tsunami generation by an underwater landslide in a 3D-NWT

Document Type

Conference Proceeding

Date of Original Version



An existing three-dimensional (3D) Numerical Wave Tank (NWT) solving fully nonlinear potential flow theory with a higher-order Boundary Element Method (BEM) is modified to simulate tsunami generation by underwater landslides. New features are added to the NWT to model underwater landslide geometry and motion and specify corresponding boundary conditions in the BEM model. Also, new snake absorbing piston boundaries are implemented to remove reflection from the onshore and offshore boundaries of the NWT. Two cases of tsunami generation are presented and results of the first one are validated using experimental results. Numerical accuracy is examined and found to be excellent in both cases.

Publication Title, e.g., Journal

Proceedings of the International Offshore and Polar Engineering Conference