| 二维多介质可压缩流的RKDG有限元方法 |
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| 引用本文： | 陈荣三,蔚喜军.二维多介质可压缩流的RKDG有限元方法[J].计算物理,2006,23(6):699-705. |
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| 作者姓名： | 陈荣三 蔚喜军 |
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| 作者单位： | 1. 中国工程物理研究院北京研究生部,北京,100088
2. 北京应用物理与计算数学研究所,计算物理实验室,北京,100088 |
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| 摘 要： | 应用RKDG（Runge—Kutta Discontinuous Galerkin）有限元方法、Level Set方法和Ghost Fluid方法数值模拟二维多介质可压缩流，其中Euler方程组、Levelset方程和重新初始化方程的空间离散采用DG（Discontinuous Galerkin）有限元方法，时间离散采用Runge-Kutta方法．对二维的气-气和气-液两相流进行了数值计算，得到了分辨率较高的计算结果．
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| 关 键 词： | RKDG有限元方法 多介质可压缩流 Ghost Fluid方法 Level Set方法 |
| 文章编号： | 1001-246X（2006）06-0699-07 |
| 收稿时间： | 2005-07-06 |
| 修稿时间： | 2005-12-08 |
An RKDG Finite Element Method for Two-dimensional Compressible Multimedia Fluids |
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| CHEN Rong-san,YU Xi-jun.An RKDG Finite Element Method for Two-dimensional Compressible Multimedia Fluids[J].Chinese Journal of Computational Physics,2006,23(6):699-705. |
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| Authors: | CHEN Rong-san YU Xi-jun |
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| Institution: | 1. Graduate School of China Academy of Engineering Physics, Beijing 100088, Chiua ; 2, lntsitute of Applied Physics and Computational Mathematics, Belting 100088, China |
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| Abstract: | The RKDG(Runge-Kutta Discontinuous Galerkin) finite element method,the Level Set method and the Ghost Fluid method are applied to compressible multimedia fluids.We discretizes Euler equations,the Level Set equation and the reinitialization equation by a DG(Discontinuous Galerkin) method in space and by a Runge-Kutta method in time.Two dimensional compressible two-fluid flows such as air-air,air-liquid are computed.High resolution ratio computational results are obtained. |
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| Keywords: | RKDG finite element method compressible multimedia fluid ghost fluid method Level Set method |
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