409 高速流れの境界層制御に関する研究 : 広がりノズルから噴出される場合(2)(OS4-2 高速流れと衝撃波現象の解明と制御,OS4 高速流れと衝撃波現象の解明と制御,オーガナイズドセッション)

概要

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In this paper, it was studied about boundary layer control of jet flow issuing from divergent nozzles. And it has aimed to clarify behavior about jet boundary layer and jet flow issuing from divergent nozzles. In the case to change divergent angle, changing of separation point and behavior of the flow was clarified by experiment and numerical analysis. Moreover, the frequency analysis of the pressure vibration of the flow field was studied by experiment, and the influence was clarified about jet boundary layer and self-included oscillation from the control of the separation point. As a result, it is clarified that the position of the separation point is different by the stagnation pressure, and the behavior of the jet flow of the downstream region and the flow of the boundary layer are affected by the separation of the flow.
2007-11-17