Numerical simulations of a two-dimensional wave tank in viscous fluid

The first results of the study of a two-dimensional numerical wave tank in viscous fluid are presented in this paper. Navier-Stokes equations are solv ed by an original, fully coupled solver to compute unsteady, incompressible free surface flows in viscous fluid by second order finite difference sche mes. Exact nonlinear free-surface boundary conditions and the moving grid t echnique are used, Generation and propagation of waves in a tank are simula ted. A numerical damping method has been used for wave absorption at the ou tlet boundary. First comparisons with experimental results show a good agre ement for waves of moderate steepness.