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�������պ����ѧѧ�� 2007, Vol. 33 Issue (10) :1158-1161    DOI:
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Heat transfer and flow resistance in a notched crossed-rib channel
Deng Hongwu, Pan Wenyan, Tao Zhi, Ding Shuiting*
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ ��һ������ṹ������ҶƬ����ͨ��——���۽�����ͨ�������˻��Ⱥ�����IJ���ʵ��.ȫ����ʵ�鶼�ھ�ֹ��״̬�����,���л���ʵ�������ˮ�������ỻ�ȷ���.ʵ��� Re����Χ��5�c000~45�c000,�õ��˴������ڿ��۽���������ҶƬ����ͨ����ʵ������,��������벻���۽�����ͨ�������Ա�,�ó�һ���ۿ�Ŀ��۽�����ͨ���������ͬ�ߴ�IJ����۽�����ͨ��,����Ч���������Ե����,������ϵ����Ӧ������С,�������廻��Ч�����ڲ�����ͨ��.����,���ڲ�ͬ�ۿ�ͨ���ĸ�������Ҳ������ʵ��Ա�.�ó� 4�cmm���۽�����ͨ���Ļ���Ч�����,������������2�cmm��6�cmm��8mm��ͨ��.
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Abstract�� The investigation of heat transfer, flow resistance and the pressure across the channel in turbulator cooling channel with a special crossed-rib channel which has slots was studied experimentally, then got amount of experimental results. All experiments were made in stillness states. The method of vapor concreting heat transfer was adopted for the heat transfer experiments. The experiment was conducted in the range of Reynolds number from 5�c000 to 45�c000. Compared with the channels which are no slots, the same dimensions ones with slots have more significant effects on the whole heat transfer enhancement. Besides, the experimental comparisons of characteristics were made to the different slots width channels. For the channels of different slots width, the heat transfer effects of 4�cmm slot width channel are best, the following are 2�cmm, 6�cmm and ��8�cmm�� in turn.
Keywords�� flow of fluids   slotting   heat transfer   friction     
Received 2006-10-24;
Fund:

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About author: �˺���(1973-),��,����������,������,Denghw@buaa.edu.cn.
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�˺���,������,����,��ˮ͡.���۽�����ͨ�����Ⱥ���������[J]  �������պ����ѧѧ��, 2007,V33(10): 1158-1161
Deng Hongwu, Pan Wenyan, Tao Zhi, Ding Shuiting.Heat transfer and flow resistance in a notched crossed-rib channel[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(10): 1158-1161
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