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�������պ����ѧѧ�� 2006, Vol. 32 Issue (05) :503-507    DOI:
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Bi-point/bi-objective optimization design of ailfoil using N-S equations
Wang Xiaolu, Zhu Ziqiang, Liu Zhou, Wu Zongcheng*
School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� Based on the computation of N-S equations and the technique of wake integration method, the sharp of the airfoil was paramerically modeled, the bi-point(BP)/bi-objective(BO) optimization design of ailfoil was discussed with the comparison of single-point(SP)/single-objective(SO) and single-point(SP)/bi-objective(BO) optimization. Powell method and objective function combination method was integrated. Numerical results of given airfoils(RAE2822 and quasi-global hawk ailfoils) cases show that the BP/BO design method is compatible and effective for multiform design status and it is necessary and important to choose the objective function in the optimization method. The BP/BO optimal ailfoils have better pressure distribution to the original ones, which leads to higher coefficient of lift and lower coefficient of drag, thus results in better integral performance.The BP/BO optimal airfoils also have better integral performance to the SP/SO and the SP/BO ones.
Keywords�� bi-point(BP) design   bi-objective(BO) optimization   airfoil design   N-S equations     
Received 2005-05-23;
Fund:

������Ȼ��ѧ����������Ŀ(10472013);���տ�ѧ����������Ŀ(04A51044)

About author: �����(1982-),��,�����̳���,��ʿ��, cfd@ase.buaa.edu.cn.
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�����, ����ǿ, ����, ���ڳ�.����N-S���̵�����˫��Ƶ�˫Ŀ���Ż����[J]  �������պ����ѧѧ��, 2006,V32(05): 503-507
Wang Xiaolu, Zhu Ziqiang, Liu Zhou, Wu Zongcheng.Bi-point/bi-objective optimization design of ailfoil using N-S equations[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(05): 503-507
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2006/V32/I05/503
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