江汉大学学报(自然科学版) ›› 2014, Vol. 42 ›› Issue (2): 31-33.

• 数学 • 上一篇    下一篇

基于双层位势的Poisson 方程无奇异方法

林鑫,高发玲   

  1. 青岛理工大学 琴岛学院,山东 青岛 266106
  • 出版日期:2014-04-25 发布日期:2014-05-15
  • 作者简介:林鑫(1982—),女,讲师,硕士,研究方向:边界元在工程中的应用。

A Nonsingular Method Based on Double Layer Potential for Poisson Equation

LIN Xin,GAO Faling   

  1. Qindao College,Qingdao Technological University ,Qingdao 266106,Shandong,China
  • Online:2014-04-25 Published:2014-05-15

摘要: 针对求解Poisson方程的边值问题,利用虚边界上分布的矩密度,得出基于双层位势的虚边界元方程。该方法有效地避免了奇异和强奇异积分的计算。数值算例证明了算法的有效性和精确性。

关键词: Poisson方程, 边值问题, 双层位势, 虚边界元

Abstract: Towards the boundary problem of Poisson equation,different from the virtual boundary element equation based on the single layer potential,another virtual boundary collocation method (VBCM)is conducted based on double layer potential for Poisson problem,with the moment density distributed on the virtual boundary. The VBCM can avoid the singular,hyper-singular integral ,the numerical example presents the efficiency and accuracy of the method.

Key words: Poisson equation, boundary value problems, double-layer potential, virtual boundary element

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