| 动态碰撞网格的DSMC及其并行化 |
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| 引用本文： | 陈颖骝,刘洪,李明禄. 动态碰撞网格的DSMC及其并行化[J]. 计算机应用与软件, 2009, 26(10): 39-42 |
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| 作者姓名： | 陈颖骝 刘洪 李明禄 |
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| 作者单位： | 上海交通大学计算机科学与工程系,上海,200240;上海交通大学航空航天学院,上海,200240 |
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| 基金项目： | 国家高技术研究发展计划项目 |
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| 摘 要： | DSMC(Direct Simulate Monte Carlo)方法是处理稀薄气体问题的一种有效的方法,但现有的DSMC存在着网格生成及处理复杂、算例需进行大量人工调整、计算量大、耗时长等缺点.分析DSMC方法中对网格的要求以及网格在整个DSMC方法中所起的作用,提出了动态划分碰撞网格的DSMC算法,有效地解决了复杂流场条件下网格自适应的问题,并通过实验验证了该算法的正确性.同时,针对DSMC算法计算量大的特点,利用共享内存的并行模型对动态网格的DSMC算法进行了并行化,得到了较好的结果.
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| 关 键 词： | DSMC 动态网格 并行化 |
DSMC OF DYNAMIC COLLISION GRID AND ITS PARALLELISATION |
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| Chen Yingliu,Liu Hong,Li Minglu. DSMC OF DYNAMIC COLLISION GRID AND ITS PARALLELISATION[J]. Computer Applications and Software, 2009, 26(10): 39-42 |
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| Authors: | Chen Yingliu Liu Hong Li Minglu |
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| Affiliation: | Department of Computer Science and Technology;Shanghai Jiaotong University;Shanghai 200240;China;College of Aeronautics and Space;China |
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| Abstract: | DSMC is an effective method in rarefied gas dynamics,but it also has some deficiencies such as complexity in grid generation and processing,mass manual adjustment on calculation examples,heavy load and long time in computation,etc.In this paper,after analysing the requirement on grid in DSMC method and the role the grid plays in whole DSMC method,we proposed a novel DSMC algorithm called dynamically partitioning collision grid method which resolves effectually the grid adaptive problem in condition of compl... |
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| Keywords: | DSMC |
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