受動キャビティによる三次元衝撃波/乱流境界層干渉の制御に関する数値的研究(流体工学,流体機械)

概要

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Suppression of three-dimensional shock wave/turbulent boundary layer interaction is one of the important subjects on supersonic air intake. In the present study, the passive control of two- and three-dimensional shock wave/turbulent boundary layer interactions are considered. First, computations are performed for two-dimensional flow field at freestream Mach number of 2.46 with various passive cavities beneath the interaction region. The results suggest that the parallel blowing from a cavity to the mean flow with a guide plate can highly keep the interaction region narrow. Next, the most suitable cavity shape clarified in the 2-dimensional computations is applied to the three-dimensional swept shock wave/turbulent boundary layer interaction at Mach number of 3.11. It is exhibited that the blowing direction is important, and the effect of passive cavity is nearly same as that of bleed.
社団法人日本機械学会の論文
2003-10-25