凹凸のある傾斜面上における衝撃波の反射の構造

概要

論文の詳細を見る
The detailed wave structure of a reflected shock wave over a wedge with surface roughness is examined. The rough wedge has regular, two-dimensional geometric protuberances. The shape of protuberances was square in cross section and the spacing was the same as its height. The protuberances varied in size from 0.5 to 8 mm. The incident shock Mach number M was 1.4 and wedge angle varied from 20°to 45°. It is found that the geometric wave structure varies as time proceeds and a pseudostationary (self-similar) state is not attained in our experimental conditions. However the wave configurations are similar as long as the numbers of protuberances over which the incident wave traverses are the same. It is also found that there are four types of shock reflection corresponding to transition. They are MR→MR, MR→RR→MR, RR→MR, and RR→RR.
一般社団法人日本機械学会の論文
1990-05-25