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Influence of wing location on rotor-wing interaction of compound helicopter
Wan Jia, Chen Ming*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The compound helicopter has gained more and more attentions so far, but the analysis method available is limited. Employing the free-wake arithmetic and vortex lattice method(VLM), a program for compound helicopter aerodynamic computation was developed. Using this program, interactions between the rotor and the wing were computed in different advance ratios and wing locations. From the computation results, some conclusions can be made: for the compound helicopter described, the interaction between the wing and the rotor isn-t sensitive to the wing location in high velocity, except the rotor torque; In low flight speed, the interaction is more complex, and needs more researches; Because of the dissymmetrical structure of the rotor wakes, the spanwise lift distribution of the wing is dissymmetrical, and it will cause a rolling torque.
Keywords�� compound helicopters   aerodynamics interaction   wing location     
Received 2008-08-10;
About author: �� ��(1983-),��,�Ĵ���ɽ��,˶ʿ��,williamwanjia@163.com.
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�� ��, �� ��.����λ�öԸ���ʽֱ��������-������ŵ�Ӱ��[J]  �������պ����ѧѧ��, 2009,V35(5): 519-522
Wan Jia, Chen Ming.Influence of wing location on rotor-wing interaction of compound helicopter[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(5): 519-522
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