射流对压气机叶栅分离流控制的数值研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2007, Vol. 28 ›› Issue (增): 7-13.

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Numerical Investigation on Controlling Separated Cascade Flows by Using Jets

ZHOU Xiao-bo¹,ZHOU Sheng¹,HOU An-ping¹,ZHENG Xin-qian²

1 National Key Laboratory on Aeroengines, School of Jet Propulsion, Beijing University ofAeronautics and Astronautics  2 Department of Automotive Engineering, Tsinghua University

Received:2006-10-25 Revised:2007-06-29 Online:2007-08-10 Published:2007-08-10
Contact: HOU Anping¹

Abstract

Abstract:

Separated flow is studied on a 2D cascade using steady and unsteady jets. The time-mean jeted flow rates are not more than 1% of the inlet mass flow rate. The results show that, by means of adding jets on the suction surface, the separated flow could be effectively controlled and the time-mean performance of flow filed could be remarkably improved. The optimal jet direction varies with each type of jets.

Key words: axial , compressor , cascade, , separated , flow , control, , jet, , unsteady , vortex , flow, , temporalspatial , structure

CLC Number:

V231.3

ZHOU Xiao-bo;ZHOU Sheng;HOU An-ping;ZHENG Xin-qian. Numerical Investigation on Controlling Separated Cascade Flows by Using Jets[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2007, 28(增): 7-13.

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Numerical Investigation on Controlling Separated Cascade Flows by Using Jets

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