| 随机扰动下三维流体界面不稳定性的并行计算 |
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| 引用本文： | 唐维军,赵宁,李晓林,张景琳,蔚喜军.随机扰动下三维流体界面不稳定性的并行计算[J].计算物理,2001,18(6):539-543. |
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| 作者姓名： | 唐维军 赵宁 李晓林 张景琳 蔚喜军 |
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| 作者单位： | 1. 北京应用物理与计算数学研究所计算物理实验室, 北京 100088;2. 南京航空航天大学空气动力学系, 江苏 南京 210016;3. Department of Applied Mathematics and Statistics, SUNY at Stony Brook, Stony Brook, 11794, USA |
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| 基金项目： | 国家自然科学基金重大项目(19932010),惯性约束聚变青年科学基金(青2001-02),计算物理实验室试点基金及国家自然科学基金(10072028)资助项目 |
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| 摘 要： | 对三维流体界面不稳定性的数值模拟引进了新的数值计算方法,并在MPI并行计算环境下进行了数值模拟.利用LevelSet方法确定界面位置,零水平集对应界面位置.对应离散LevelSet方程和界面两侧的两套Euler方程,借助于Ghost网格方法来完成离散.对最后网格点上的两套状态量的辨认依赖于该点的LevelSet值的符号.并进行了数值计算.
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| 关 键 词： | 界面不稳定性 Level Set方法 TVD格式 Ghost方法 并行计算 |
| 文章编号： | 1001-246X(2001)06-0539-05 |
| 收稿时间： | 2001-03-14 |
| 修稿时间： | 2001年3月14日 |
PARALLEL COMPUTATION OF FLUID INTERFACE INSTABILITY IN THREE DIMENTION WITH RANDOM PERTURBATION |
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| TANG Wei-jun,ZHAO Ning,LI Xiao-lin,ZHANG Jing-lin,YU Xi-jun.PARALLEL COMPUTATION OF FLUID INTERFACE INSTABILITY IN THREE DIMENTION WITH RANDOM PERTURBATION[J].Chinese Journal of Computational Physics,2001,18(6):539-543. |
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| Authors: | TANG Wei-jun ZHAO Ning LI Xiao-lin ZHANG Jing-lin YU Xi-jun |
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| Institution: | 1. Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, P R China;2. Nanjing University of Aeronautics and Astronautics Nanjing 210016, P R China;3. Department of Applied Mathematics and Statistics, SUNY at Stony Brook, Stony Brook, 11794, USA |
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| Abstract: | Computation of three dimensional fluid interface instability with random perturbation is performed on a 8 CPU personal parallel computer system.The parallel computation platform is a message passage interface (MPI).A second order TVD scheme with Ghost method is applied with a fully parallel algorithm to the 3D Euler equations.Level Set function is used to track the motion of a fluid interface in an Eulerian framework.Buffer zone and data communication are discussed.The number of computation meshes is about 1 million.Bubble evolution with random perturbation in Rayleigh Taylor instability is obtained by numerical simulation. |
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| Keywords: | parallel algorithm random perturbation Level Set method Ghost method |
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