NDLI: Numerical simulation research of the stall flow field of the transonic compressor blade tip

Content Provider	IEEE Xplore Digital Library
Author	Yanglin Li Qiaojuan Gao Bo Zhang
Copyright Year	2010
Description	Author affiliation: Department of Automation and Mechanical Engineering, China University of Petroleum, Beijing, China (Qiaojuan Gao) \|\| School of the Environment, Jiangsu University, Zhenjiang, China (Bo Zhang) \|\| Department of Electromechanical Engineering, Taizhou Polytechnic College, China (Yanglin Li)
Abstract	The rotating stall of turbo machinery causes the bottleneck in the air compressor performance further improving. Based on the numerical simulation research of the transonic compressor rotor, the flow field details which cannot get from experiments were derived, and the physical mechanism of the first stall at blade tip in transonic compressor was qualitatively interpreted, then it was found that the spatial trajectory of leakage vortex center at the blade tip is almost the same in different conditions. Because of the shock wave of the blade flow field gradually moves to the upstream and intensity increases with the decrease of the flow rate. While the leakage flows of the blade tip were increasing, the rupture of the blade tip leakage vortex was getting more serious. Thus blade row channels of the rotor blade tip are jammed, which is the main reason of blade tip stall. Blade load is beyond the load capacity because of the increase of the attack angle of the rotor blade tip under the near stall condition, which is another reason of blade tip stall. These conclusions provide the useful information to reveal compressor internal stall mechanism.
Starting Page	238
Ending Page	241
File Size	1732752
Page Count	4
File Format	PDF
ISBN	9781424490875
e-ISBN	9781424490905
DOI	10.1109/FITME.2010.5655597
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-09
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	tip stall Numerical models flow field numerical simulation Radio access networks compressor
Content Type	Text
Resource Type	Article

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