|
|||||
|
|
| 虚拟流体方法的显隐算法 | |
| 引用本文： | 丁岩,袁礼,杨莉. 虚拟流体方法的显隐算法[J]. 计算物理, 2013, 30(1): 27-34 |
| 作者姓名： | 丁岩 袁礼 杨莉 |
| 作者单位： | 1. 河南理工大学, 河南 焦作 454000;2. 中国科学院数学与系统科学研究院计算数学所, 北京 100190 |
| 基金项目： | 国家自然科学基金(11126116);河南理工大学博士基金(B2010-11)资助项目 |
| 摘 要： | 基于算子分裂,把欧拉方程分裂成对流项和非对流项两部分,建立一种基于原始变量的二阶显隐算法.由通常的虚拟流体方法显式地预估流场,用隐式的压力修正对预估解进行修正.计算结果表明,这样可以有效增大时间步长,提高计算效率. |
| 关 键 词： | 虚拟流体方法 显隐算法问题 算子分裂 |
| 收稿时间： | 2012-04-17 |
| 修稿时间： | 2012-07-24 |
An Explicit-implicit Algorithm for Ghost Fluid Method |
|
| DING Yan , YUAN Li , YANG Li. An Explicit-implicit Algorithm for Ghost Fluid Method[J]. Chinese Journal of Computational Physics, 2013, 30(1): 27-34 | |
| Authors: | DING Yan YUAN Li YANG Li |
| Affiliation: | 1. Henan Polytechnic University, Jiaozuo, Henan Province, 454000, China;2. Institute of Computational Mathematics, Academy of Mathematics and System Science, Chinese Acadcmy of Scicncc, Beijing 100190, China |
| Abstract: | Based on operator splitting technique, Euler equations is splitted into convection part and non-convection part. A predicted solution is obtained by solving the convection part with explicit GFM method. It is corrected by an implicit pressure correction algorithm derived from the non-convection part. A second order primitive explicit-implicit algorithm is built. It shows that CFL condition can be relaxed and efficiency is improved. |
| Keywords: | ghost fluid method explicit-implicit algorithm operator splitting |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《计算物理》浏览原始摘要信息 | |
| 点击此处可从《计算物理》下载全文 | |