超音速異種ガス乱流混合層の数値解析 : 第1報, 一様流の混合特性

概要

論文の詳細を見る
A method for investigating the mixing characteristics of supersonic turbulent flow with different species gases is presented. In the method, time-averaged mixing flow equations with a two-equation turbulence model are solved numerically. Calculations are carried out for various inlet flow conditions. It is found that a high spreading rate of the mixing layer is obtained when the diffusion of high-speed gas is superior to that of low-speed gas. This tendency is emphasized markedly as the ratios such as velocity, density and pressure between low-and high-speed gases become small. Some of the calculation results obtained by the present method are compared with existing experimental data, and it is shown that the present method gives encouraging results for the compressibility effect on the spreading rates of mixing flows.
社団法人日本機械学会の論文
1990-07-25