合成双射流控制NACA0015翼型大攻角流动分离试验研究

doi:10.7527/S1000-6893.2015.0170

Abstract

Abstract:

A horizontal dual synthetic jet actuator(DSJA) is designed. And experimental investigation on the separation flow control of stalled NACA0015 airfoil at high angle of attack is carried out with dual synthetic jet actuator. Characteristics of the flow separation control under DSJA with different jet locations and different jet energy are investigated. Results indicate that the stall angle is delayed by introducing DSJA. Jet locations of DSJA play a critical role. It is interesting that the control efficiency will be excellent when any of the dual synthetic jets locates in front of and is close to the unexcited separation point. When the separation points are between two exports of DSJA and the first export is close to the separation point, the effect will be better for DSJA to control airfoil separation. It suggests the DSJA has stronger ability than the synthetic jet actuator controlling flow separation. What's more, the ability of dual synthetic jets control flow separation can be increased by increasing jet energy.

Key words: dual synthetic jet actuator, NACA0015 airfoil, flow separation control, separation point, PIV

CLC Number:

V211
O358

LI Yujie, LUO Zhenbing, DENG Xiong, SUN Jian, SHEN Zheng. Experimental investigation on flow separation control of stalled NACA0015 airfoil using dual synthetic jet actuator[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(3): 817-825.

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Experimental investigation on flow separation control of stalled NACA0015 airfoil using dual synthetic jet actuator

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