ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Experimental investigation on flow separation control of stalled NACA0015 airfoil using dual synthetic jet actuator
Received date: 2015-04-10
Revised date: 2015-06-15
Online published: 2015-06-16
Supported by
National Natural Science Foundation of China(11002161, 11372349);Foundation for the Author of National Excellent Doctor Dissertation of China(201058);Aeronautical Science Foundation of China(20121288002);Foundation for the Excellent Youth of NUDT(2013-CT-01)
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.
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 . DOI: 10.7527/S1000-6893.2015.0170
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