Abstract
The flow development and the entrainment process in a two-dimensional buoyant surface jet are discussed by numerical experiments using the algebraic stress model, which has been examined through the comparison with measured turbulence quantities in the previous paper (Murota et al., 1989). The calculated results are in good agreement with the empirical relationship between the entrainment rate and the Richardson number. It also shows that the dependence of entrainment rate on the Reynolds shear stress changes drastically at the shear layer Richardson number of 0.08, whose value corresponds to the critical value obtained in stratified shear layers theoretically and experimentally.
