...
首页> 外文期刊>Journal of Computational Physics >The Shortley-Weller embedded finite-difference method for the 3D Poisson equation with mixed boundary conditions
【24h】

The Shortley-Weller embedded finite-difference method for the 3D Poisson equation with mixed boundary conditions

机译:具有混合边界条件的3D泊松方程的Shortley-Weller嵌入式有限差分方法

获取原文
获取原文并翻译 | 示例
           

摘要

This paper describes a method for the solution of the 3D Poisson equation, subject to mixed boundary conditions, on an irregularly shaped domain. A finite difference method is used, with the domain embedded in a rectangular grid. Quadratic treatment of the boundary conditions is shown to be necessary to obtain uniform error of. This contrasts with the Dirichlet case where both quadratic and linear treatments give error, although the coefficient of error may be much larger for the linear case. Explicit error estimates demonstrating this behaviour are found for the 1D case with similar behaviour found in 2D and 3D numerical examples. Finally, the extension of this approach to the N-dimensional case is given, where N>3.
机译:本文介绍了一种在不规则形状的域上求解混合边界条件下的3D泊松方程的方法。使用有限差分方法,将域嵌入矩形网格中。边界条件的二次处理被证明对于获得均匀误差是必要的。这与Dirichlet情况形成了对比,在Dirichlet情况下,二次和线性处理都会产生误差,尽管线性情况下的误差系数可能更大。对于1D情况,可以找到证明此行为的显式误差估计,并在2D和3D数值示例中发现相似的行为。最后,将这种方法扩展到N维情况,其中N> 3。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号