| 非结构网格上Euler方程的区域分裂算法及并行计算 |
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| 引用本文： | 司海青,王同光,成娟.非结构网格上Euler方程的区域分裂算法及并行计算[J].空气动力学学报,2006,24(1):102-108,119. |
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| 作者姓名： | 司海青 王同光 成娟 |
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| 作者单位： | 1. 南京航空航天大学,航空宇航学院,江苏,南京,210016
2. 北京应用物理与计算数学研究所,北京,100088 |
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| 摘 要： | 改进了“波阵面”区域分裂算法,并应用于流场区域的划分;对于子区域边界的不光滑现象,为尽量减少通讯消耗,提出了一种边界并行优化策略。利用PVM并行环境,探讨了非结构网格上求解Euler方程的分区并行算法。根据改进的区域分裂算法及优化策略,运用Jameson有限体积法,对二维翼型流场进行了分区并行求解,多区计算的结果与单区计算的结果作了比较,表明了本文研究方法的有效性。
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| 关 键 词： | 区域分裂算法 非结构网格 Euler方程 有限体积法 并行计算 |
| 文章编号： | 0258-1825（2006）01-0102-08 |
| 收稿时间： | 2005-02-27 |
| 修稿时间： | 2005-02-272005-04-27 |
Domain decompositions and parallel algorithms to solve Euler equations on the unstructured grid |
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| SI Hai-qing,WANG Tong-guang,CHENG Juan.Domain decompositions and parallel algorithms to solve Euler equations on the unstructured grid[J].Acta Aerodynamica Sinica,2006,24(1):102-108,119. |
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| Authors: | SI Hai-qing WANG Tong-guang CHENG Juan |
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| Institution: | 1. College of Aervspace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China ; 2. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | Wave-front domain splitting algorithm is improved,and then applied to the domain decompositions of the flow field.A new optimization strategy of subdomain boundary is subsequently presented in order to improve the smoothness of boundaries and save the mutual overheads among processors.According to the improved algorithm and the optimization method,parallel algorithms to solve the Euler equations are studied on the unstructured grids.The domain decomposition and parallel solver with Jameson finite volume scheme are applied to the flow over airfoils.Comparison between the multi-domains and single domain demonstrates the high effectiveness of the algorithms. |
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| Keywords: | domain splitting algorithm unstructured grid Euler equations finite volume scheme parallel calculations |
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