2007•Ryuutai Kougaku Bumon Kouenkai kouen rombunshuu/Ryutai Kogaku Bumon Koenkai koen ronbunshuOpen access
331 A Control of a Backward Facing Step Flow in Low Reynolds Number by Synthetic Jet(2)
岡本 圭太, 山田 俊輔, 元祐 昌廣, 本阿弥 眞治
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Abstract
The objective of this study is to control the reattachment process of the separating flow over a backward facing step in a low Reynolds number range by synthetic jet. The Reynolds number based on the step height ranges from 301 to 908. The synthetic jet has a frequency of 36Hz. In order to investigate the effect of periodic disturbance on the reattachment process, Micro Flow Sensor was used for measurement of forward flow fraction and frequency analysis. The experimental results show that synthetic jet is effective for flow control. The reattachment process strongly depends on Reynolds number and velocity ratio.
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