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�������պ����ѧѧ�� 2003, Vol. 29 Issue (4) :346-349    DOI:
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Experimental Research of Low Speed Aerodynamic Characteristics of��Saucer��Like Lifting Body
Wang Jindong1, Shen Xialing1*
1. Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics;
2. Dept. of Propulsion�� Beijing University of Aeronautics and Astronautics

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Abstract�� Wind tunnel experiments of a saucer-like low speed lifting-body were conducted, for the purpose of improving its low speed aerodynamic performance and investigating effects of various aerodynamic factors. Aerodynamic coefficients were measured in the wind tunnel experiments, some different methods of boundary layer control were compared and their characters were described. These results showed that combined with proper aerodynamic design and boundary layer control, the performance of the saucer-like low speed lifting-body can be improved significantly. The highest lift to drag radio is up to 18.7, 86% improvement relativeto its prototype, with the zero-lift drag coefficient being decreased 56%. With boundary layer control instruments, aerodynamic performance at high angle of attack is also improved. Experiments approved that this saucer-like lifting-body takes the advantage of less outer size and higher carrying capacity, and test flight of its radio control flight model has been accomplished successfully.
Keywords�� lifting bodies   lift-drag radio   boundary layer control     
Received 2002-01-16;
About author: ������(1977-),��,��������������,˶ʿ��,100083,����.
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������, ������, �߸�.����������ĵ������������о�[J]  �������պ����ѧѧ��, 2003,V29(4): 346-349
Wang Jindong, Shen Xialing.Experimental Research of Low Speed Aerodynamic Characteristics of��Saucer��Like Lifting Body[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2003,V29(4): 346-349
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2003/V29/I4/346
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