Meshfree analysis of electromagnetic wave scattering from conducting targets: Formulation and computations

被引：14
|
作者：
Nicomedes, W. L. [1 ]
Bathe, K. J. [2 ]
Moreira, F. J. S. [3 ]
Mesquita, R. C. [3 ]
机构：
[1] Univ Fed Minas Gerais, Grad Program Elect Engn, BR-31270901 Belo Horizonte, MG, Brazil
[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
[3] Univ Fed Minas Gerais, Dept Elect Engn, Belo Horizonte, MG, Brazil
来源：
COMPUTERS & STRUCTURES | 2017年 / 184卷
关键词：
Electromagnetics; Finite elements; Inf-sup condition; Meshfree methods; Mixed/hybrid formulations; Wave scattering;
D O I：
10.1016/j.compstruc.2017.01.014
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
We propose a completely meshfree procedure aimed at the time-harmonic analysis of electromagnetic wave scattering from conducting targets. The problem is described by the vector wave equation with a divergence-free constraint. We propose a mixed formulation whose unknowns are the electric field vector and a Lagrange multiplier. We investigate the well-posedness of the variational problem and construct compatible meshfree function spaces able to describe solutions in any geometry, in two and three dimensions. The method does not depend on any kind of parameter tuning. We illustrate its performance in a number of solutions through experimentally derived convergence rates and comparisons with other techniques. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 52
页数：17
相关论文
共 50 条
12345