Smoothed particle ElectroMagnetics: A mesh-free solver for transients

被引:45
作者
Ala, G
Francomano, E
Tortorici, A
Toscano, E
Viola, F
机构
[1] Univ Palermo, Dipartimento Ingn Informat, I-90128 Palermo, Italy
[2] Univ Palermo, Dipartimento Ingn Elettr Elettron & Telecomunicaz, I-90128 Palermo, Italy
关键词
mesh-free particle method; smoothed particle hydrodynamics; Maxwell's equations; electromagnetic transients;
D O I
10.1016/j.cam.2005.06.036
中图分类号
O29 [应用数学];
学科分类号
070104 [应用数学];
摘要
In this paper an advanced mesh-free particle method for electromagnetic transient analysis, is presented. The aim is to obtain efficient simulations by avoiding the use of a mesh such as in the most popular grid-based numerical methods. The basic idea is to obtain numerical solutions for partial differential equations describing the electromagnetic problem by using a set of particles arbitrarily placed in the problem domain. The mesh-free smoothed particle hydrodynamics method has been adopted to obtain numerical solution of time domain Maxwell's curl equations. An explicit finite difference scheme has been employed for time integration. Details about the numerical treatment of electromagnetic vector fields components are discussed. Two case studies in one and in two dimensions are reported. In order to validate the new proposed methodology, named as Smoothed Particle ElectroMagnetics, a comparison with the standard finite difference time domain method results is performed. The intrinsic adaptive capability of the proposed method, has been exploited by introducing irregular particles distribution. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:194 / 205
页数:12
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