遷音速ディフューザの研究 : 第3報, 衝撃波の不安定な挙動に関する実験的研究

概要

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Previous investigations show that a shock wave in a transonic diffuser under a constant overall pressure ratio may be either a stable one or an unstable one. However, the behavior of an unstable shock wave is not well understood since the extent of the pressure ratio of an unstable shock wave is very limited. In the present paper, the behavior of an unstable shock wave has been observed by a schlieren optical method, and pressure measurements for a two-dimensional hyperbolic-type diffuser where the unstable shock wave is observed in a wider extent of the downstream section of the throat in comparison with usual diffusers. The effect of diffuser geometries on the unstable shock wave has been discussed in the latter half of this paper.
一般社団法人日本機械学会の論文
1988-02-25