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�������պ����ѧѧ�� 2011, Vol. 37 Issue (1) :15-20    DOI:
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�Ա�, ���ܱ�, ��ʢ*
�������պ����ѧ ���շ��������������ص�ʵ����, ���� 100191
Bleeding impact on performance of transonic axial compressor
Zhao Bin, Li Shaobin, Zhou Sheng*
National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� By analyzing the transonic single-stage compressors NASA Stage35, multiple bleeding plans were presented according to the physical phenomena of the flow in rotor and stator passage. Combined with experimental results, compressor flow field with and without air bleeding were compared to study the impact of the rotor casing bleeding position and the stator casing bleeding amount on the compressor flow field and performance. The results show that rotor casing bleeding can inhibit the development of tip leakage flow in the passage circumferential, reduce the flow loss of the tip region and enhance the compressor performance. The impact mechanisms on the tip flow field vary as the bleeding positions and structures change. Stator casing bleeding can cut the flow loss and improve the compressor efficiency.
Keywords�� casing bleeding   transonic compressors   bleeding position   bleeding amount     
Received 2010-06-01;

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About author: �� ��(1983-),��,����������,��ʿ��,zhaobinaero@gmail.com.
�Ա�, ���ܱ�, ��ʢ.�����Կ�������ѹ�������ܵ�Ӱ��[J]  �������պ����ѧѧ��, 2011,V37(1): 15-20
Zhao Bin, Li Shaobin, Zhou Sheng.Bleeding impact on performance of transonic axial compressor[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(1): 15-20
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