The Experimental Research on a New Method for Extending the Axial-Compressor’s Stall Margin
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The Experimental Research on a New Method for Extending the Axial-Compressor’s Stall Margin
Vol. 21, Issue 3, (2006)
作者机构:
北京航空航天大学 航空航天大学能源与动力工程学院 航空发动机气动热力重点实验室,北京,100083
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Published:2006
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LI Zhi-ping, LI Qiu-shi, YUAN Wei, et al. The Experimental Research on a New Method for Extending the Axial-Compressor’s Stall Margin[J]. 2006, 21(3).
DOI:
LI Zhi-ping, LI Qiu-shi, YUAN Wei, et al. The Experimental Research on a New Method for Extending the Axial-Compressor’s Stall Margin[J]. 2006, 21(3).DOI:
The Experimental Research on a New Method for Extending the Axial-Compressor’s Stall Margin
investigating the influences of unsteady disturbance on compressor’s aerodynamic stability by exterior excitation
and then exploring the new method’s outlook for engineering application by utilizing the unsteady wake impact cooperative effect in adjacent blades of compressor.Furtherly
the model experiment proved that the goal which increasing the compressor’s aerodynamic performance and aerodynamic stability can be realized by optimizing the unsteady aerodynamic circumference configuration technique in compressor.The experiment results indicated that the stall margin can be increased greatly when excitation amplitude exceeded the threshold value and excitation frequency cooperated with the typical vortex shedding frequency
the stall margin can be increased 22.1% relatively.On the other hand
the cooperative effects of WIE(Wake Impact Effect
WIE) at different correct rotating speed were investigated in detail.