用非结构直角网格和欧拉方程计算飞机绕流

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2002, Vol. 23 ›› Issue (6): 564-567.

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COMPUTATION OF THE FLOW PAST AIRCRAFT USING UNSTRUCTURED CARTESIAN GRID AND EULER EQUATIONS

HUANG Ming-ke

Dept. of Aerodynamics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received:2001-10-18 Revised:2002-03-12 Online:2002-12-25 Published:2002-12-25

Abstract

Abstract:

Unstructured Cartesian grid for complex geometries is generated based on Octree data structure. The projection method is applied near the body surface to make the grid bodyfitted. Jameson's finite volume method is extended to such a grid to solve the Euler equations. The computation of the flow past a fighter model shows a reduced CPU time for the grid generation, and a good convergence level reached for the flow computation due to the quality of the computational grids.

Key words: Cartesian grid, Euler equations, finite volume method

HUANG Ming-ke. COMPUTATION OF THE FLOW PAST AIRCRAFT USING UNSTRUCTURED CARTESIAN GRID AND EULER EQUATIONS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2002, 23(6): 564-567.

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COMPUTATION OF THE FLOW PAST AIRCRAFT USING UNSTRUCTURED CARTESIAN GRID AND EULER EQUATIONS

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