| SALE速度重映算法的改进 |
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| 引用本文： | 熊俊,周海兵,张树道. SALE速度重映算法的改进[J]. 计算物理, 2006, 23(1): 37-42 |
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| 作者姓名： | 熊俊 周海兵 张树道 |
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| 作者单位： | 北京应用物理与计算数学研究所,北京,100088;北京应用物理与计算数学研究所,北京,100088;北京应用物理与计算数学研究所,北京,100088 |
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| 摘 要： | 在一维交错网格上基于SALE算法的速度重映策略,提出了3种动量通量的改进算法:①采用迎风斜率加修补的SUR目的;②采用minmod斜率限制器的SM目的和③采用一种新的斜率限制器加修补的SLR目的.3种目的具有二阶守恒保界的性质,同时继承了SALE算法简单高效的特点,可以直接推广到二维情况.
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| 关 键 词： | ALE 交错网格 速度重映 |
| 文章编号： | 1001-246X（2006）01-0037-06 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2005-04-05 |
Improved Velocity Remapping Algorithms Based on SALE |
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| XIONG Jun,ZHOU Hai-bing,ZHANG Shu-dao. Improved Velocity Remapping Algorithms Based on SALE[J]. Chinese Journal of Computational Physics, 2006, 23(1): 37-42 |
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| Authors: | XIONG Jun ZHOU Hai-bing ZHANG Shu-dao |
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| Affiliation: | Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | Based on the velocity remapping strategy of the SALE algorithm,three methods are proposed to improve the accuracy and monotonicity of momentum flux calculation on a 1D staggered grid: the SUR method which employs the upwind-type slope and a repairing procedure;the SM method which employs a minmod slope limiter;and the SLR method which employs a new slope limiter and a repairing procedure.These methods are second-ordered,conservative and bound-preserving.They inherit advantages of simplicity and high efficiency of the SALE algorithm.They are easily generalized to the two-dimensional case. |
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| Keywords: | ALE |
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