| 人工压缩解法压缩因子在两相流中的优化 |
| |
| 引用本文： | 汪迎春,汪德爟.人工压缩解法压缩因子在两相流中的优化[J].武汉理工大学学报(交通科学与工程版),2007,31(2):370-372. |
| |
| 作者姓名： | 汪迎春 汪德爟 |
| |
| 作者单位： | 河海大学环境科学与工程学院,南京,210098 |
| |
| 摘 要： | 在工程问题中,两相流的计算很多,如分层流问题、自由面问题等.两相流计算的复杂性远远大于单相流,计算很容易失稳.文中对传统的人工压缩法进行了改进,考虑了单元的相体积分布对压缩效应的影响,并用正弦函数对压缩因子进行了优化,获得了稳定而一致的收敛速度.用改进的人工压缩法结合LEVEL SET方法对二维溃坝问题进行了实例计算,计算结果和实验数据吻合较好.
|
| 关 键 词： | N-S方程 两相流 人工压缩 |
| 修稿时间： | 2006-10-09 |
Optimization of Artificial Compressibility Method in Two Phase Fluid |
| |
| Wang Yingchun,Wang Deguan.Optimization of Artificial Compressibility Method in Two Phase Fluid[J].journal of wuhan university of technology(transportation science&engineering),2007,31(2):370-372. |
| |
| Authors: | Wang Yingchun Wang Deguan |
| |
| Institution: | College of environmental science and engineering, Hohai University ,Nanjing 210098 |
| |
| Abstract: | In the engineering research,calculation of two-phase fluid often occurs,such as: stratified-flow,free surface,etc.The calculating complexity of two-phase fluid is more than single-phase fluid,and the stabilization is poor.In this paper,the influence of phase volume distribution is taken into account and the traditional artificial compressibility method is improved.By using sinusoid function,the compressibility coefficient is optimized.A consistent and steady rate of convergence is got.Finally,the improved method and level set method are applied to the two-dimensional Dam-Break problem.The calculating results are in accordance with the experimental data. |
| |
| Keywords: | LEVELSET |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
