Numerical Analysis of Mass Transfer in a Plane Shear Layer : Heat Transfer, Combustion, Power, Thermophysical Properties

抄録

The two-dimensional unsteady motion of a plane shear layer and its mass transfer process were numerically simulated by using the discrete vortex method, combined with the third-order upwind finite difference method. A visualized distribution of the mass concentrations showed that the occurrence of entrainment corresponded to large eddy motion. The distribution profiles of the average concentration and the fluctuation intensity showed self-similarities. The distribution profile of the average concentration had a stepwise shape, and that of the fluctuation had two peaks. The entrainment of the fluid of the high-speed side proved to be larger than that of the low-speed side.