A-12 逆圧力勾配の影響を受ける周期的後流通過による平板境界層の遷移に関する研究(空力II,一般講演)

概要

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The purpose of this study is to investigate experimentally how factors affect the transitional behavior of the boundary layer on the blade. This paper deals with the effects of three factors: periodic wake passing; free-stream turbulence; pressure gradients. The flow fields on the blade change from an accelerating flow to a decelerating flow. Especially, there are few research examples about the effect, of the periodic wake passing through the deceleration flow field on the blade. Then precise experiments are demanded by many researchers. Wake-affected boundary layer bypass transition was evaluated using a Hot-Wire Anemometer to get the ensemble-averaged velocity and intermittency factor from the raw velocity data under the influence of adverse Pressure Gradients.
公益社団法人日本ガスタービン学会の論文
2006-10-01