C115 超音速流中に垂直に噴出する不足膨張噴流の挙動と流れ場

概要

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A transverse sonic jet (nitrogen) was injected from a circular injector on an inclined flat plate into a supersonic cross flow. Flow characteristics of a jet was organized by a penetration height of jet depended on the jet-to-freestream momentum flux ratio. The results showed that the penetration height was proportional to the jet-to-freestream momentum flux ratio to the power of 0.68 (M_1=1.7) or 0.70 (M_1=3.3). Furthermore, in order to investigate the interaction between boundary layer on the flat plate and shock wave generated by the transverse sonic jet, a separation point of boundary layer and a bow shock location were observed. The separation point of boundary layer moved upstream as the jet-to-freestream momentum flux ratio increased, and also the stand of distance of bow shock wave from the jet increased as the jet-to-freestream momentum flux ratio increased. The results also showed that the shock wave/boundary layer interaction had influenced on the penetration height of jet.
日本流体力学会の論文
2001-07-31