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�������պ����ѧѧ�� 2008, Vol. 34 Issue (8) :961-963    DOI:
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Analogy performance of flow and heat transfer on the V groove surface
Liu Kun, Tao Zhi, Wu Hong, Wang Jiao*
National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The drag and heat transfer characteristics of small longitudinal V groove surfaces in the rectangular channel were investigated experimentally based on the Reynold analogy. Within the range of Reynolds number from 10 000 to 80 000, the experimental results indicated that the V groove surface of ��h=s��=0.5�qmm had drag-reduction characteristics,and the heat transfer of the V groove surface also be weakened, which demonstrates the correctness of the theory of Reynold analogy. The weakeness of heat transfer and drag-reduction decreased as Reynolds number increased. The decrease of heat transfer and drag-reduction contributed to the improvement of performance of aircraft engine, which will be beneficial to the flow and heat transfer when this type of surface applys to the surface of turbine vane.
Keywords�� drag-reduction surface   flow and heat transfer   experiment     
Received 2007-07-18;
Fund:

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About author: �� ��(1984-),��,����������,˶ʿ��,liukun7926@gmail.com.
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����,����,���,����.V�͹��۱����������ȵı�������[J]  �������պ����ѧѧ��, 2008,V34(8): 961-963
Liu Kun, Tao Zhi, Wu Hong, Wang Jiao.Analogy performance of flow and heat transfer on the V groove surface[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(8): 961-963
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2008/V34/I8/961
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