Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin
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Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin
Vol. 24, Issue 11, (2009)
作者机构:
1. 北京航空航天大学机械工程及自动化学院,北京,100191
2. 中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015
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DOI:
CLC:
Published:2009
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LI Xiao-tang, WANG Qin, XUE Xiu-sheng, et al. Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin[J]. 2009, 24(11).
DOI:
LI Xiao-tang, WANG Qin, XUE Xiu-sheng, et al. Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin[J]. 2009, 24(11).DOI:
Influence of inlet dynamic total pressure flow field on gas-turbine engine stability margin
Gas-turbine inlet dynamic total pressure flow field was measured to analyze the reason of surges happened during previous engine tests.Inlet flow field characteristics were obtained such as larger eddy scale and higher instant pressure distortion and pressure fluctuation associated with rotor speed base frequency which caused by the resonance of the engine and the inlet scroll case etc.Experimental data and information show that inlet dynamic flow field characteristics of the above-mentioned will make the engine increase the loss of stability margin and result in the engine surge.