  A fully nonlinear, three-dimensional numerical model is developed for the
simulation of tidal flow over arbitrary bottom topography in an ocean with
realistic stratification. The model is capable of simulating accurately the
generation of fine-scale internal wave tidal beams, their interaction with an
ocean thermocline and the subsequent generation of solitary internal waves that
propagate on this thermocline. Several preliminary simulation results are shown
for uniform and non-uniform flow over an idealized two-dimensional ridge, which
are compared with linear theory, and for flow over an idealized two-dimensional
continental shelf.
