Numerical Simulation of Nonlinear Waves Using PLIC VOF Method

Numerical simulation of nonlinear waves is of prime importance. In this research the WISE 2DV numerical model has been deployed. In the WISE model Reynolds-averaged Navier-Stokes (RANS) equations have been solved using finite volume discretization and projection method. The method of volume of fluid for surface has been implemented in the model. For implementation of VOF method, Youngs scheme has been utilized. In this scheme color function advection is based on piecewise linear interface reconstruction. The k–ε model is used for turbulence closure of RANS equations.
For validation of the model a short amplitude sloshing wave in a tank, regular wave in a flume and propagation of solitary wave have been simulated, and the results have been compared with analytical solutions, which show very good agreements. A non-linear short wave propagation has also been simulated, and predictions have been compared against experimental results, which confirms the model ability in prediction of non-linear short waves.