期刊文献+

二维Helmholtz方程边值问题的虚边界元解法

The virtual boundary element method for 2D Helmholtz equation boundary value problems
下载PDF
导出
摘要 针对二维Helmholtz方程边值问题,采用单层位势方式,利用分布在虚边界上的场源函数,建立了二维Helmholtz方程边值问题的虚边界元计算公式.该方法避免了传统边界元算法中奇异积分的计算,具有边界附近精度高的优点.数值算例证明了此方法的可行性和有效性. Based on the single layer potential,the virtual boundary calculation formula of 2D Helmholtz equation boundary value problem is given with the help of the field source function on the virtual boundary.The method can avoid the singular integral,and it can reach a high accuracy near the boundary.Numerical example demonstrate the feasibility and efficiency of this method.
机构地区 燕山大学理学院
出处 《西北师范大学学报(自然科学版)》 CAS 北大核心 2011年第4期21-24,共4页 Journal of Northwest Normal University(Natural Science)
基金 河北省自然科学基金资助项目(E2009000365)
关键词 二维Helmholtz方程边值问题 单层位势 虚边界元 均源函数 2D Helmholtz equation boundary value problem single layer potential virtual boundary element field source function
  • 相关文献

参考文献7

二级参考文献13

  • 1何文平,封国林,董文杰,李建平.求解对流扩散方程的四种差分格式的比较[J].物理学报,2004,53(10):3258-3264. 被引量:17
  • 2孙焕纯,杨海天,吴京宁,杨贺先.虚边界元法的应用及其求解方法[J].应用力学学报,1994,11(1):28-36. 被引量:12
  • 3陈则民.对流扩散方程的有限元方法[J].天津轻工业学院学报,1995,10(2):49-51. 被引量:4
  • 4Li Ruixia,Adv Engineering Software,1992年,15卷,3/4期,181页 被引量:1
  • 5FRANK Penzel.A boundary integral method applied to a convection-diffusion problem[J].Journal of Computational and Applied Mathematics,1999,111:217-226. 被引量:1
  • 6KRISHNA M S,MASATAKA Tanaka.Analytical integration of weakly singular integrals in boundary element analysis of Helmholtz and advection-diffusion equations[J].Comput Methods Appl Mech Engrg,2000,189:625 -640. 被引量:1
  • 7TELLES J.Self-adaptive co-ordinate transformation for efficient numerical evaluation of general boundary element integrals[J].International Journal of Numerical Methods in Engineering,1987,24:959-973. 被引量:1
  • 8DOBLARE M,GARCIA L.On non-linear transformation for the integrals of weakly singular and Cauchy principal value integrals[J].International Journal of Numerical Methods in Engineering,1997,40:3325-3358. 被引量:1
  • 9KRISHNA M S,MASATAKA Tanaka.On exponential variable transformation based boundary element formulation for advection-diffusion problems[J].Engineering Analysis with Boundary Elements,2000,24:225 -235. 被引量:1
  • 10张耀明,孙焕纯,杨海天.虚边界元法中的旋转周期对称结构[J].计算力学学报,1999,16(2):241-247. 被引量:2

共引文献28

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部