To read the full version of this content please select one of the options below:

A HYBRID FINITE ELEMENT — BOUNDARY ELEMENT METHOD (FEM‐BEM) FOR THERMAL ANALYSIS IN ENERGY INSTALLATIONS

L. PICHON (Laboratoire de Genie Eleclrique de Paris U.R.A. 127 CNRS, Ecole Supérieure d'Electricité, Universités Paris 6 et Paris 11, 91192 Gif sur Yvette Cedex, France)
A. RAZEK (Laboratoire de Genie Eleclrique de Paris U.R.A. 127 CNRS, Ecole Supérieure d'Electricité, Universités Paris 6 et Paris 11, 91192 Gif sur Yvette Cedex, France)

Abstract

This paper presents a hybrid finite element — boundary element method for the steady state thermal analysis of energy installations. The coupling of the two techniques is presented: finite elements are used in a bounded region containing thermal sources while the complementary domain is treated with boundary elements. With such a combination the number of unknowns is reduced and an accurate prediction of temperature is obtained. As an example, the temperature rise is computed for the case of three power cables laid in a thermal backfill: the finite element method (FEM) is used for the cables and the backfill while the homogeneous soil is taken into account with the boundary element method (BEM).

Citation

PICHON, L. and RAZEK, A. (1991), "A HYBRID FINITE ELEMENT — BOUNDARY ELEMENT METHOD (FEM‐BEM) FOR THERMAL ANALYSIS IN ENERGY INSTALLATIONS", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 10 No. 2, pp. 103-114. https://doi.org/10.1108/eb010084

Publisher

:

MCB UP Ltd

Copyright © 1991, MCB UP Limited