Abstract
The Lattice Boltzmann Method (LBM) has been developed as a new and robust numerical model to solve the fluid dynamics. In this study, we applied LBM for free surface flow, which Shallow-water approximation cannot provide accurate estimation. LBM was tested in some benchmark problems and laboratory experiment. The model results are in good agreement with dam-break experiment, including the movement of free surface of water body, splash against the  upper wall, and a wave traveling back to the other side of the tank. Through the model validation, we found that LBM can be applied to simulate the complex behavior in tsunami wave front.