A two-dimensional numerical wave flume - Part 1: Nonlinear wave generation, propagation, and absorption

A numerical model is developed to simulate fully nonlinear transient waves in a semiinfinite, two-dimensional wave tank. A mixed Eulerian-Lagrangian-formolation is adopted and a high-order boundary element method is used to solve for the fluid motion at each time step. Input wave characteristics are specified at the upstream boundary of the computational domain using an appropriate wave theory. At the downstream boundary, a damping region is used in conjunction with a radiation condition to prevent wave reflections back into the computational domain. The convergence characteristics of the numerical model are studied and the numerical results are validated through a comparison with previous published data.