Flow separation control was investigated on a compressor cascade using three types of fluidic-based excitations: steady suction, steady blowing, and synthetic jet. By solving unsteady Reynolds–averaged Navier–Stokes equations, the effect of excitation parameters (amplitude, angle, and location) on performance was addressed. The results show that the separated flow can be controlled by the fluidic-based actuators effectively and the time-averaged performance of the flow field can be improved remarkably. Generally, the improvement can be enhanced when the amplitude of excitation is increased. The optimal direction varies with each type of excitations and is related to physical mechanisms underlying the separation control. For two types of steady excitations, the most effective jet location is at a distance upstream of the time-averaged separation point and the synthetic jet is just at the separation point.
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e-mail: zhengxq@tsinghua.edu.cn
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October 2011
Research Papers
Separation Control of Axial Compressor Cascade by Fluidic-Based Excitations
Xinqian Zheng,
Xinqian Zheng
State Key Laboratory of Automotive Safety and Energy,
Tsinghua University
, Beijing 100084, China
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Yangjun Zhang,
Yangjun Zhang
State Key Laboratory of Automotive Safety and Energy,
e-mail: zhengxq@tsinghua.edu.cn
Tsinghua University
, Beijing 100084, China
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Weidong Xing,
Weidong Xing
National Key Laboratory of Diesel Engine Turbocharging Technology
, Datong, Shanxi 037036, China
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Junyue Zhang
Junyue Zhang
National Key Laboratory of Diesel Engine Turbocharging Technology
, Datong, Shanxi 037036, China
Search for other works by this author on:
Xinqian Zheng
State Key Laboratory of Automotive Safety and Energy,
Tsinghua University
, Beijing 100084, China
Yangjun Zhang
State Key Laboratory of Automotive Safety and Energy,
Tsinghua University
, Beijing 100084, Chinae-mail: zhengxq@tsinghua.edu.cn
Weidong Xing
National Key Laboratory of Diesel Engine Turbocharging Technology
, Datong, Shanxi 037036, China
Junyue Zhang
National Key Laboratory of Diesel Engine Turbocharging Technology
, Datong, Shanxi 037036, ChinaJ. Turbomach. Oct 2011, 133(4): 041016 (7 pages)
Published Online: April 21, 2011
Article history
Received:
October 3, 2007
Revised:
February 12, 2010
Online:
April 21, 2011
Published:
April 21, 2011
Citation
Zheng, X., Zhang, Y., Xing, W., and Zhang, J. (April 21, 2011). "Separation Control of Axial Compressor Cascade by Fluidic-Based Excitations." ASME. J. Turbomach. October 2011; 133(4): 041016. https://doi.org/10.1115/1.4002407
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