计算物理 ›› 2012, Vol. 29 ›› Issue (1): 10-16.

• 论文 • 上一篇    下一篇

一类基于RBF插值的守恒重映算法

赵小杰1, 赵宁1, 王东红2   

  1. 1. 南京航空航天大学航空宇航学院, 江苏 南京 210016;
    2. 南京航空航天大学理学院, 江苏 南京 210016
  • 收稿日期:2011-01-26 修回日期:2011-09-03 出版日期:2012-01-25 发布日期:2012-01-25
  • 通讯作者: 欧阳洁,E-mail:jieouyang@nwpu.edu.cn
  • 作者简介:赵小杰(1985-),男,河北保定,硕士,从事计算流体力学研究,E-mail:zxj985@163.com
  • 基金资助:
    国家自然科学基金(10972106)资助项目

A Kind of Conservative Remapping Algorithms Based on RBF Interpolations

ZHAO Xiaojie1, ZHAO Ning1, WANG Donghong2   

  1. 1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. College of Sciences, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2011-01-26 Revised:2011-09-03 Online:2012-01-25 Published:2012-01-25

摘要: 为保证重映过程的高守恒精度和单调性,并且在间断处具有极高的分辨率,基于径向基函数(RBF)插值方法构造了一类适用于任意网格的RBF守恒重映算法,通过计算守恒误差测试重映算法的守恒精度。将该方法用于光滑函数和含有间断的函数,并与其它守恒重映方法比较,表明该方法数值结果较好。

关键词: 守恒重映, 网格重构, 径向基函数

Abstract: In order to ensure conservative precision and monotonicity of a remapping algorithm and discontinuity with high resolution, a new kind of conservative RBF remapping algorithm is developed based on radial based function interpolation. Conservative precision is tested with a conservative error remapping algorithm. Numerical results are obtained for smooth and discontinuous functions. Compared with other remapping methods,the method gives good numerical results.

Key words: conservative remapping, reconstruction grids, radial based function

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