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�������պ����ѧѧ�� 2011, Vol. 37 Issue (2) :193-196    DOI:
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Influence of gap parameters on aerodynamics of multi-element airfoil
Qin Xuguo, Liu Peiqing, Qu Qiulin, Peng Guohui*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The effect of flap and slat riggings on the multi-element airfoil was investigated numerically. The compressible Navier-Stokes equations were solved by the finite-volume method. Spalart-Allmaras (S-A) turbulence model was used. The effects of flap and slat riggings on lift coefficients and pressure coefficients were provided. The validation of computation agreed well with the experimental results. The computations on the effect of flap and slat riggings shows that lift coefficient has an optimum with every design parameter. With proper flap and slat riggings, the adverse pressure gradient and the separation on the backward wing section could be suppressed, and the wake from forward wing section does not mix with the boundary layer of backward wing section. So the performance of the airfoil can be improved.
Keywords�� numerical simulation   multi-element airfoil   gap parameter   aerodynamic character     
Received 2009-12-10;

����973�ص�����о���չ�ƻ�(2009CB72400101); "����"������л���������Ŀ(20090504)

About author: ������(1982-),��,ɽ���ൺ��,��ʿ��,qinxuguo@ase.buaa.edu.cn.
������, ������, ������, �����.��������Զ�������������ܵ�Ӱ��[J]  �������պ����ѧѧ��, 2011,V37(2): 193-196
Qin Xuguo, Liu Peiqing, Qu Qiulin, Peng Guohui.Influence of gap parameters on aerodynamics of multi-element airfoil[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(2): 193-196
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