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�������պ����ѧѧ�� 1998, Vol. 24 Issue (6) :642-645    DOI:
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Grid Generation Technique of Complex Configurations and its Applications
Zhang Zhengke1, Zhu Ziqiang2, Zhuang Fenggan2*
1. Beijing University of Aeronautics and Astronautics,Dept.of Flight Vehicle Design and Applied Mechanics;
2. Beijing University of Aeronautics and Astronautics,Dept.of Flight Vehicle Design and Applied Mechanics

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Abstract�� A multiblock structured grid generation system for complex practical aircraft is presented and applied in the grid generation of a twin-tail fighter. A vectorized polynomial of degree 3 is used to generate grid on the interface of adjacent blocks. The volume grid in each block is generated by solving elliptic partial differential equations with source terms corrected by 3-d Hilgenstock method to control the grid line angle (orthogonality) to boundaries and first-layer grid point spacings off boundaries to expected values. Euler equations are solved in the generated grid of the twin-tail fighter and the computed results of the aerodynamic coefficients of the complete aircraft, the wing surface pressure and the vortical flow field are reasonable.
Keywords�� grids   fighter   computational fluid mechanics   multiblock grid   Euler equations     
Received 1998-05-18;
Fund:

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������, ����ǿ, ׯ���.���������������ɼ�����Ӧ��[J]  �������պ����ѧѧ��, 1998,V24(6): 642-645
Zhang Zhengke, Zhu Ziqiang, Zhuang Fenggan.Grid Generation Technique of Complex Configurations and its Applications[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 1998,V24(6): 642-645
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y1998/V24/I6/642
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