| 一种含运动固壁超声速流动的Descartes网格算法 |
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| 引用本文： | 王强,胡湘渝,姜宗林. 一种含运动固壁超声速流动的Descartes网格算法[J]. 计算物理, 2009, 26(4): 517-526 |
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| 作者姓名： | 王强 胡湘渝 姜宗林 |
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| 作者单位： | 中国航天空气动力技术研究院,北京,100074;慕尼黑工业大学,机械工程学院,加兴,85748;中国科学院力学研究所,高温气体动力学重点实验室,北京,100080 |
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| 摘 要： | 提出一种Descartes网格算法,用于数值求解含任意复杂及运动固壁的超声速流动问题.采用位标集函数确定和跟踪流-固界面.引入虚网格技术处理流-固边界条件,并沿法向和切向分别进行计算.该算法简单、稳健,可与高阶有限差分格式并用.选取一组一维/二维静止或运动物体绕流算例,验证其有效性.
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| 关 键 词： | 流-固界面 Descartes网格 运动边界 位标集 激波 |
| 收稿时间： | 2008-11-13 |
| 修稿时间： | 2009-01-17 |
A Cartesian Mesh Algorithm for Supersonic Flows Around Arbitrary Moving Bodies |
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| WANG Qiang,HU Xiangyu,JIANG Zonglin. A Cartesian Mesh Algorithm for Supersonic Flows Around Arbitrary Moving Bodies[J]. Chinese Journal of Computational Physics, 2009, 26(4): 517-526 |
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| Authors: | WANG Qiang HU Xiangyu JIANG Zonglin |
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| Affiliation: | 1. China Academy of Aerospace Aerodynamics, Beijing 100074, China;2. School of Mechanical Engineering, Technical University of Munich, 85748 Garching, Germany;3. LHD, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | A Cartesian mesh algorithm is developed for numerical solution of supersonic flows with arbitrarily complex and moving solid boundaries.The method defines and tracks fluid-solid interfaces with a level set function. Fluid-solid boundary condition is dealed with a ghost cell technique and is calculated separately in normal and tangential directions.The method proposed is simple,robust,and can work with high-order finite difference schemes.To validate the scheme,one-and two-dimensional numerical examples invo... |
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| Keywords: | fluid-solid interface Cartesian mesh moving boundary level set shock wave |
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