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力学与实践 ›› 2004, Vol. 26 ›› Issue (2): 0-0.doi: 10.6052/1000-0992-2003-119

• 应用研究 •    

用HLLC方法处理运动边界

张军 耿继辉 谭俊杰   

  1. 南京理工大学动力工程学院 南京理工大学动力工程学院 南京 210094 南京理工大学动力工程学院 南京 210094
  • 收稿日期:2003-04-08 修回日期:2003-10-29 出版日期:2004-04-10 发布日期:2004-04-10

MOVING BOUNDARY PROBLEMS USING HLLC METHOD

  • Received:2003-04-08 Revised:2003-10-29 Online:2004-04-10 Published:2004-04-10

摘要: 针对含有运动边界非结构网格点的显式有限体积方法,研究了如何使用HLLC方法处理 运动边界条件,计算了活塞拉伸、压缩问题,并和解析解进行了比较. 作为应用示例,比较 了静止圆柱绕流和静止流场中运动圆柱的绕流情形. 结果表明:应用HLLC方法处理运动边 界是可行的.

关键词: 运动边界,HLLC, 数值模拟

Abstract: This paper discusses how to use HLLC method to treat moving boundary. The explicit finite volume method based on unstructured meshes is employed to solve Eulerian equations. The impulse piston moving backward and forward is simulated to validate the moving boundary treatment. As an example, flows around a static cylinder and around a moving cylinder in a static flow field are calculated. The numerical results indicate that it is feasible to use the HLLC method to treat the moving boundary condition.

Key words: moving boundary, HLLC, numerical simulation