| Compact difference approximation with consistent boundary condition |
| |
| 引用本文： | FU Dexun,MA Yanwen,LI Xinliang,LIU Mingyu. Compact difference approximation with consistent boundary condition[J]. 自然科学进展(英文版), 2003, 13(10): 730-735. DOI: 10.1080/10020070312331344320 |
| |
| 作者姓名： | FU Dexun MA Yanwen LI Xinliang LIU Mingyu |
| |
| 作者单位： | Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China,Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China,Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China,Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China, the Major State Basic Research Development Program of China (G1999032805) and National High Tech ICF Committee in China |
| |
| 摘 要： | For simulating multi-scale complex flow fields it should be noted that all the physical quantities we are interested in must be simulated well. With limitation of the computer resources it is preferred to use high order accurate difference schemes. Because of their high accuracy and small stencil of grid points computational fluid dynamics (CFD) workers pay more attention to compact schemes recently. For simulating the complex flow fields the treatment of boundary conditions at the far field boundary points and near far field boundary points is very important. According to authors' experience and published results some aspects of boundary condition treatment for far field boundary are presented, and the emphasis is on treatment of boundary conditions for the upwind compact schemes. The consistent treatment of boundary conditions at the near boundary points is also discussed. At the end of the paper are given some numerical examples. The computed results with presented method are satisfactory.
|
| 关 键 词： | complex flow fields numerical simulation boundary conditions upwind compact scheme |
Compact difference approximation with consistent boundary condition |
| |
| FU Dexun,MA Yanwen,LI Xinliang,Liu Mingyu. Compact difference approximation with consistent boundary condition[J]. Progress in Natural Science, 2003, 13(10): 730-735. DOI: 10.1080/10020070312331344320 |
| |
| Authors: | FU Dexun MA Yanwen LI Xinliang Liu Mingyu |
| |
| Affiliation: | Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China |
| |
| Abstract: | For simulating multi-scale complex flow fields it should be noted that all the physical quantities we are interested in must be simulated well. With limitation of the computer resources it is preferred to use high order accurate difference schemes. Because of their high accuracy and small stencil of grid points computational fluid dynamics (CFD) workers pay more attention to compact schemes recently. For simulating the complex flow fields the treatment of boundary conditions at the far field boundary points and near far field boundary points is very important. According to authors' experience and published results some aspects of boundary condition treatment for far field boundary are presented, and the emphasis is on treatment of boundary conditions for the upwind compact schemes. The consistent treatment of boundary conditions at the near boundary points is also discussed. At the end of the paper are given some numerical examples. The computed results with presented method are satisfactory. |
| |
| Keywords: | complex flow fields numerical simulation boundary conditions upwind compact scheme |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《自然科学进展(英文版)》浏览原始摘要信息 |
|
点击此处可从《自然科学进展(英文版)》下载全文 |
