Effects of stator bending on pressure field and loss of transonic turbine stage
WANG Kai, ZHOU Xun, WANG Zhong-qi
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Abstract:
To study effects of the upstream flow field changing on the downstream flow field of transonic turbine, different three-dimensional bowed blades, which are the stator blades of transonic turbine stage, were designed in this paper. And then numerical calculations were carried out. The effects on downstream flow field were studied and analyzed in detail. Results show that, at the middle of stator blades, although the increasing Mach number causes the increase of shock-wave strength and friction, the middle flow field of downstream rotors is improved obviously. It is an important change in transonic condition. This causes the loss of the rotor’s middle part decreased greatly. Correspondingly, efficiency of the whole transonic stage can be increased.
Key words: bowed blade high pressure turbine low aspect ratio transonic turbine
DOI：10.11916/j.issn.1005-9113.2009.01.007
Clc Number:V211
Fund:
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Effects of stator bending on pressure field and loss of transonic turbine stage
本站小编 哈尔滨工业大学/2019-10-23
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