关键词: 无粘流;气动热力学;计算流体动力学;比热

Abstract: The author has already put forward an improved analytical solution for varying specific heat parallel stream mixing, which is more rational,simpler,quicker and hence more advanced. And it is understand that fixed specific heat solution gives big errors. This paper is aimed at searching for some simplified approximate solutions between the former two. It is clear now that the method using only specific heat rations kT for cold, hot and mixed streams static temperatures gives nearest to accurate results, so could be adopted for reference and applications. Illustrative examples include mixing of unequal and equal total pressures, with the drop of total pressure after mixing in the latter case primarily analyzed.

Key words: Inviscid flow;Aerothermodynamics;Computational fluid dynamics;Specific heat