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一类奇异摄动问题的自适应移动网格算法 被引量:1

An Adaptive Moving Grid Algorithm for a System of Singularly Perturbed Problems
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摘要 针对一类奇异摄动反应扩散方程组,提出了求解这类问题的自适应移动网格方法 .基于等分布原理,给出了网格控制函数及相应的网格生成算法.数值实验表明该自适应移动网格方法至少是一阶一致收敛的. This paper proposed an adaptive grid method about the system of two singularly perturbed reaction-diffusion problems.Based on the principle of equal distribution,a monitor function and corresponding mesh generation algorithm are presented.Moreover,the stated moving mesh algorithm gives first-order uniform convergence which has also been provided in the results for one test problem.
作者 毛志 刘利斌 MAO Zhi;LIU Li-bin(School of Data Science,Tongren University,Tongren554300;School of Mathematics and Computational Science,Xiangtan University,Xiangtan411105;School of Mathematics and Statistics,Nanning Normal University,Nanning530029 China)
出处 《湘潭大学学报(自然科学版)》 CAS 2019年第1期64-71,共8页 Journal of Xiangtan University(Natural Science Edition)
基金 国家自然科学基金项目(11761015 11771224) 国家自然科学基金数学天元基金项目(11826211 11826212) 中国博士后科学基金面上项目(2017M623074) 广西自然科学基金项目(2017GXNSFBA198183) 广西自然科学基金重点项目(2017GXNSFDA198014) 贵州省科技基金一般项目(黔科合基础[2018]1162)
关键词 奇异摄动 反应扩散 移动网格算法 网格等分布 singularly perturbation reaction-diffusion moving grid algorithm grid equidistribution
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