Hybrid transfinite element modelling/analysis of non‐linear heat conduction problems involving phase change

Kumar K. Tamma (Department of Mechanical Engineering, University of Minnesota, 111 Church Street S.E., Minneapolis, MN 55455, USA)
Sudhir B. Railkar (Department of Mechanical Engineering, University of Minnesota, 111 Church Street S.E., Minneapolis, MN 55455, USA)

Engineering Computations

ISSN: 0264-4401

Publication date: 1 February 1988

Abstract

The present paper describes the applicability of hybrid transfinite element modelling/analysis formulations for non‐linear heat conduction problems involving phase change. The methodology is based on application of transform approaches and classical Galerkin schemes with finite element formulations to maintain the modelling versatility and numerical features for computational analysis. In addition, in conjunction with the above, the effects due to latent heat are modelled using enthalpy formulations to enable a physically realistic approximation to be effectively dealt computationally for materials exhibiting phase change within a narrow band of temperatures. Pertinent details of the approach and computational scheme adapted are described in technical detail. Numerical test cases of comparative nature are presented to demonstrate the applicability of the proposed formulations for numerical modelling/analysis of non‐linear heat conduction problems involving phase change.

Citation

Tamma, K.K. and Railkar, S.B. (1988), "Hybrid transfinite element modelling/analysis of non‐linear heat conduction problems involving phase change", Engineering Computations, Vol. 5 No. 2, pp. 117-122. https://doi.org/10.1108/eb023729

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MCB UP Ltd

Copyright © 1988, MCB UP Limited

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