The influence of synthetic jet excitation on secondary flow in compressor cascade

查看全文 作　　者：Yanming LIU, Tuo SUN, Chaobin GUAN and Baoguo WANG School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China Assistant Professor

出　　处：《Journal of Thermal Science》索引2010年第19卷第6期,共5页

基　　金：National Natural Science Foundation of China for the support projects Grant No.50806006 摘　　要：The detailed numerical simulation has been carried out to investigate the effect of synthetic jet excitation on the secondary flow at 5° incidence in a compressor cascade, in which the synthetic jet actuation is equipped on the suction surface. The influence of excitation position, one fixed near the trailing edge and the other fixed a little far from the trailing edge, has also been studied. The results show that unsteady disturbance of desirable synthetic jet effectively enhances the mixing of the fluid inside the separation region, which reduces the vortex intensity and the energy loss, improves the flow status in the cascade, and also suppresses velocity fluctuation near the trailing edge. Additionally, the actuation fixed near the separation region proves to be more effective and exit load distribution is more uniform due to the employment of the synthetic jet. 关键词：合成射流压气机叶栅二次流激励数值模拟能量损失流体混合涡流强度

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The influence of synthetic jet excitation on secondary flow in compressor cascade

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