LATTICE BOLTZMANN MODELING OF INTERFACIAL GRAVITY-WAVES

A novel numerical technique for simulating interfacial gravity waves i s considered. The model comprises an immiscible, binary fluid lattice Boltzmann model incorporating a gravitational interaction and simulate s two immiscible, viscous fluids of different densities with a sharp i nterface between them. The model is described and the accuracy of the technique is considered. Simulation results are presented and the wave velocities, the oscillation frequency and the damping rate are found and compared to theory. A good comparison is found suggesting that the lattice Boltzmann approach is indeed accurately mimicking the wave dy namics. (C) 1998 American Institute of Physics.