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An accelerated scheme with high quality mesh based on Lloyd iteration
  • ISSN号:1000-5900
  • 期刊名称:《湘潭大学自然科学学报》
  • 时间:0
  • 分类:O177.91[理学—数学;理学—基础数学] TP391.72[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]
  • 作者机构:[1]School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China, [2]Key Laboratory of Computation and Simulation in Science and Engineering of Hunan Province (Xiangtan University), Xiangtan 411105, China
  • 相关基金:Project(11002121) supported by the National Natural Science Foundation of China; Project(09QDZ09) supported by Doctor Foundation of Xiangtan University, China; Project(2009LCSSEI1) supported by Hunan Key Laboratory for CSSE, China; Project(2011FJ3231) supported by Planned Science and Technology Project of Hunan Province, China; Project(12JJ3054) supported by the Provincial Natural Science Foundation of Hunan, China
中文摘要:

High quality mesh plays an important role for finite element methods in science computation and numerical simulation.Whether the mesh quality is good or not,to some extent,it determines the calculation results of the accuracy and efficiency.Different from classic Lloyd iteration algorithm which is convergent slowly,a novel accelerated scheme was presented,which consists of two core parts:mesh points replacement and local edges Delaunay swapping.By using it,almost all the equilateral triangular meshes can be generated based on centroidal Voronoi tessellation(CVT).Numerical tests show that it is significantly effective with time consuming decreasing by 40%.Compared with other two types of regular mesh generation methods,CVT mesh demonstrates that higher geometric average quality increases over 0.99.

英文摘要:

High quality mesh plays an important role for finite element methods in science computation and numerical simulation. Whether the mesh quality is good or not, to some extent, it determines the calculation results of the accuracy and efficiency. Different from classic Lloyd iteration algorithm which is convergent slowly, a novel accelerated scheme was presented, which consists of two core parts: mesh points replacement and local edges Delaunay swapping. By using it, almost all the equilateral triangular meshes can be generated based on centroidal Voronoi tessellation (CVT). Numerical tests show that it is significantly effective with time consuming decreasing by 40%. Compared with other two types of regular mesh generation methods, CVT mesh demonstrates that higher geometric average quality increases over 0.99.

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期刊信息
  • 《湘潭大学自然科学学报》
  • 北大核心期刊(2011版)
  • 主管单位:湖南省教育厅
  • 主办单位:湘潭大学
  • 主编:黄云清
  • 地址:湖南湘潭市
  • 邮编:411105
  • 邮箱:jxtus@xtu.edu.cn
  • 电话:0731-58292143
  • 国际标准刊号:ISSN:1000-5900
  • 国内统一刊号:ISSN:43-1066/N
  • 邮发代号:42-33
  • 获奖情况:
  • 全国优秀科技期刊,湖南省一级期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),美国数学评论(网络版),德国数学文摘,荷兰文摘与引文数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:4425