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�������պ����ѧѧ�� 2010, Vol. 36 Issue (5) :596-600    DOI:
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Influence of canard wing and strake on aerodynamic characteristic of  chined forebody at high AOA

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ͨ�����ں����ͻ�����б����ѹ��PIV��Particle Image Velocimetry��������ʾʵ�飬�о��˴󹥽���Ѽ��/�����Ի����������Ե�Ӱ����ɣ������������װѼ��󹥽�С��50°ʱ��ͷ�������仯���󣬳���50°���Ǻ󣬻�ͷ�������������½����������Ź���������Ӱ��������ͷ���������󣻼�װѼ����ʹѼ�������淨����������ӣ���װ���������˱����������������жԻ�ͷ�в��������յ��������˱���������������װ����/Ѽ��ʱ���Ի�ͷ����Ѽ����������Ӱ����Ѽ�����������ã��Ա�����������Ӱ���ɱ�������������.

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Abstract��

The influence of canard wing and strake on aerodynamic characteristic of chined forebody was studied by surface pressure measurement and particle image velocimetry��PIV�� flow measuring systematically.It shows that there is only a little effect of canard wing on the flowfield around nose area under 50° angle of attack��AOA��. If angles of attack are larger than 50°, the normal forces on nose region  decrease sharply and influenced region by canard wing is enlarged toward the nose region with increasing AOA. The normal force in the canard wing region is increased sharply by setting canard wing. The flowfield on the strake region is improved and the normal force on the strake region is increased by setting the strake. If the canard wing and strake are set simultaneously, the flow behaviors in nose and canard regions will be dominated by canard wing and one in strake region will be dominated by strake.

Keywords�� chined forebody   high angle of attack   aerodynamic characteristic     
Received 2009-06-15;
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About author: ������(1982-),��,ɽ����̩��,˶ʿ����fan_g_l_1999@163.com.
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�����ڣ���ѧ�������ӿ�����ΰ.Ѽ��/�������ں����ͻ���󹥽���������Ӱ��[J]  �������պ����ѧѧ��, 2010,V36(5): 596-600
Fan Guolei��Deng Xueying��Wang Yankui��Tian Wei.Influence of canard wing and strake on aerodynamic characteristic of  chined forebody at high AOA[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(5): 596-600
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