| 谢公南,王秋旺,张东升,陶文铨.非正交同位网格下压力与速度耦合算法[J].计算力学学报,2006,23(1):93~96 |
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| 非正交同位网格下压力与速度耦合算法 |
| A pressure-velocity coupling algorithm on non-orthogonal non-staggered grid |
| 修订日期：2004-03-06 |
| DOI：10.7511/jslx20061017 |
| 中文关键词: SIMPLER算法 非正交同位网格 分汊通道 |
| 英文关键词:SIMPLER algorithm,non-orthogonal non-staggered grid,branching channel |
| 基金项目:中国科学院资助项目 |
| 谢公南 王秋旺 张东升 陶文铨 |
| 西安交通大学动力工程多相流国家重点实验室,西安710049 |
| 摘要点击次数: 1624 |
| 全文下载次数: 9 |
| 中文摘要: |
| 发展了一种在非正交同位网格下以笛卡儿速度分量作为动量方程的独立变量、压力与速度耦合的SIMPLER算法。该算法的特点是显式处理界面速度中的压力交叉导数项，得出压力与压力修正方程，使得压力及压力修正值与界面逆变速度直接耦合。通过对分汊通道内的流动问题进行验证计算，结果表明该算法可以有效而准确地模拟复杂区域内的流动与换热问题。 |
| 英文摘要: |
| In this paper,a new numerical procedure is proposed for the steady flow of a viscous,incompressible fluid based on SIMPLER algorithm on a non-orthogonal non-staggered grid,together with Cartesian velocity components as dependent variables in the momentum equations.The main feature of the algorithm is that the pressure and pressure correction equations are obtained by explicitly treating pressure cross-derivatives terms in interface contravariant velocities.A collocated arrangement of variables is introduced on numerical grids,and the cell face velocities are calculated by the momentum interpolation.It is proved that this algorithm can be effectively used to simulate fluid flow and heat transfer in complex geometry,by the validation calculation of flow inside branching channel. |
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