计算物理 ›› 2001, Vol. 18 ›› Issue (5): 429-434.

• 论文 • 上一篇    下一篇

任意网格重映的样条逼近算法

王瑞利1, 毛明志2   

  1. 1. 北京应用物理与计算数学研究所 计算物理实验室, 北京 100088;
    2. 中山大学科学计算与计算机应用系, 广东广州 510275
  • 收稿日期:2001-01-10 修回日期:2001-04-05 出版日期:2001-09-25 发布日期:2001-09-25
  • 作者简介:王瑞利(1964-),男,陕西富平,高级工程师,从事计算流体力学方面的研究,北京8009信箱26分箱.
  • 基金资助:
    973(G1999032801);中国工程物理研究院基金资助项目

A SPLINE APPROXIMATING ALGORITHM FOR THE REZONING (REMAPPING) OF ARBITRARY MESHES

WANG Rui-li1, MAO Ming-zhi2   

  1. 1. Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, P R China;
    2. Department of Scientific and Computer Application, Zhongshan University, Guangzhou 100275, P R Chian
  • Received:2001-01-10 Revised:2001-04-05 Online:2001-09-25 Published:2001-09-25

摘要: 在大变形流体力学问题的数值模拟中,任何方法都必须考虑网格重分或网格自适应,只要改动网格就涉及重分,或自适应后从旧的、扭曲的网格到新网格的守恒量重映,包括质量、动量和能量.在研究样条函数逼近的基础上,给出一种物理量重映的对结构网格和非结构网格均适应的算法,并给出了数值结果.

关键词: 重映, 任意网格, 样条逼近

Abstract: The method in computational fluid dynamics requires the periodic remapping of conservation quantities such as mass, momentum, and energy from old or distorted meshes to some other arbitrarily defined meshes. This is a type of interpolation procedure, which is usually constrained to be conservative and monotone. A type of remapping algorithms using spline-approximating methods are presented for numerical simulation codes applied to unstructured or adaptive meshes.

Key words: rezoning (remapping), arbitrary meshes, spline-approximating, interpolation

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