軸対称放物面から反射する衝撃波の数値解析

概要

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Computational studies of the reflection process of a planar shock wave on an axisymmetrical parabolic wall were performed. The effects of the incident shock strength and depth of the reflector on the reflection process and on the maximum pressure and temperature were discussed in comparison with two-dimensional cases. The results are as follows. 1) The shape of reflected shock waves varies from a crossed pattern to an uncrossed one with an increase in the incident shock strength. 2) The pressure amplitude has a very large value near a sound wave, but shows a rapid decrease and has a minimum value with the incident shock strength. Then it increases slightly and levels off for incident shock Mach numbers stronger than 4 in a monoatomic gas. 3) After the shock focusing is achieved, clear discontinuities in density and temperature are formed in the region behind the reflected shock wave.
一般社団法人日本機械学会の論文
1992-09-25