𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Analysis of discontinuities in a grounded slab waveguide by combination of finite-element and boundary-element methods

✍ Scribed by Hirayama, Koichi ;Koshiba, Masanori

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
449 KB
Volume
2
Category
Article
ISSN
1050-1827

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A combined approach of the finite‐element and boundary‐element methods is formulated for the analysis of arbitrarily shaped discontinuities in a grounded slab waveguide. In this approach, the discontinuity region is divided into two regions. One is a finite region with arbitrary inhomogeneities; the other is a semi‐infinite and homogeneous region. The finite‐element and the boundary‐element methods are applied to the former and the latter regions, respectively, Also, analytical solutions in which both the guided and the radiation modes are taken into account are used for uniform waveguide regions connected to the discontinuity region. To show the validity and usefulness of this approach, computed results are given for several kinds of discontinuities, and some of them are compared with theoretical results previously published. © 1992 John Wiley & Sons, Inc.

📜 SIMILAR VOLUMES

Boundary conditions and use of symmetrie
Boundary conditions and use of symmetries in electromagnetic waveguide sparse matrix finite element method problems
✍ S. Selleri; M. Zoboli 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB 👁 3 views

A general approach to impose homogeneous boundary conditions on algebraic systems deriving from variational formulations of di!erential problems is presented. The proposed approach proves to be e!ective and its performances are particularly enhanced when sparse matrices are dealt with. It applies to

Coupling of finite element and boundary
Coupling of finite element and boundary integral methods for a capsule in a Stokes flow
✍ J. Walter; A.-V. Salsac; D. Barthès-Biesel; P. Le Tallec 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 292 KB

## Abstract We introduce a new numerical method to model the fluid–structure interaction between a microcapsule and an external flow. An explicit finite element method is used to model the large deformation of the capsule wall, which is treated as a bidimensional hyperelastic membrane. It is couple

Finite-element boundary-integral analysi
Finite-element boundary-integral analysis of electromagnetic scattering by a buried dielectric object
✍ Giuseppe Pelosi; Giovanni Toso; Roberto Coccioli 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 200 KB 👁 2 views

The standard hybrid finite-element boundary-integral ( ) FE᎐BI technique has been extended to deal with the problem of electromagnetic scattering from buried objects. The presence of the ground᎐air interface is taken into account by using the half-space Green's function, thus reducing the number of