Orlanski, I., and B. B. Ross, 1973: Numerical simulation of the generation and breaking of internal gravity waves. Journal of Geophysical Research, 78 (36), 8808-8826.
Abstract: A numerical model is presented that permits the simulation of stratified fluid phenomena in which gravitationally unstable regions are present. The influence of subgrid scale turbulence generation due to convective instability is parameterized by relating eddy viscosity coefficients to the local Rayleigh number in unstable regions. The model is used to study three different laboratory scale flow problems involving gravity wave generation, wave breaking, and penetrative convection. The numerical solutions show good agreement with available experimental and analytic results as well as with a numerical solution obtained by other investigators.