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.
COMPEL: Theinternational Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing
Published: Feb 1, 1991
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