Tsunami Inundation Modeling
Free surface flow problems occur in disaster simulations such as tsunami flow in urban area. In this kind of situation, a non-hydrostatic free surface numerical model is required to perform a tsunami inundation simulation. In current study, we have developed a fully explicit three-dimensional free surface model by the lattice Boltzmann method with the PLIC-VOF approach. Through the classical dam-break problem, we demonstrated that our model has a convergence of model accuracy according to the spacing grid sizes. Besides, our model can calculate the interface shapes seamlessly and settle the oscillations in free surface flows.