C231 超音速流中に垂直に噴出する噴流の貫通高さ

概要

論文の詳細を見る
Penetration characteristics of a transverse sonic jet from a circular injector into a supersonic crossflow were investigated experimentally. It was clarified that the height of the jet penetration from a flat plate depended on the jet-to-freestream momentum flux ratio without using the effective back pressure which was difficult to be determined. The results showed that the height of the jet penetration was proportional to the jet-to-freestream momentum flux ratio to the power 0.64 (M_1=2) or 0.59 (M_1=4). Comparing the present results with former ones (1960's and 1970's), the validity of this method was confirmed. The general quantitative relationship between the effective back pressure and the pressure behind a normal shock wave generated by the transverse jet was discussed. It should be noted that the decrease of the effective back pressure with an increase in the jet-to-freestream momentum flux ratio, was closely connected with the shock structure generated by the interaction between the boundary layer on the flat plate and the transverse jet.
日本流体力学会の論文
2000-07-25