Artículo
Solving heat conduction problems with phase-change under the heat source term approach and the element-free Galerkin formulation
Álvarez Hostos, Juan Carlos
; Gutierrez Zambrano, Erick Alejandro; Salazar Bove, Joselynne Carolina
; Puchi-Cabrera, Eli S.; Bencomo, Alfonso Daniel
Fecha de publicación:
07/2019
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
International Communications In Heat And Mass Transfer
ISSN:
0735-1933
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The present work has been conducted in order to introduce an alternative solution for heat transfer problems with phase-change and moving boundaries, via the element-free Galerkin (EFG) method. In this novel approach, the phase-change non-linearity is addressed under the heat source term methodology. For this purpose, the global weak-form of the internal energy balance for such a non-linear transient heat transfer problem has been developed by including the latent heat as a source vector. In order to prove the reliability of this approach, the EFG formulation has been adapted to the solution of a 1-D alloy solidification benchmark problem. The suitability and potentialities of this novel approach have also been depicted in the solution of a variable domain (moving boundary) solidification problem, by considering the start-up stage of a round billet steel continuous casting process as an applied example. Results have revealed that this technique can be successfully used to deal appropriately with the marked non-linearity related to the fusion latent heat release in heat transfer problems with phase change, and its straightforward implementation leads to both accurate and stable numerical results.
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Articulos(CIMEC)
Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Citación
Álvarez Hostos, Juan Carlos; Gutierrez Zambrano, Erick Alejandro; Salazar Bove, Joselynne Carolina; Puchi-Cabrera, Eli S.; Bencomo, Alfonso Daniel; Solving heat conduction problems with phase-change under the heat source term approach and the element-free Galerkin formulation; Pergamon-Elsevier Science Ltd; International Communications In Heat And Mass Transfer; 108; 7-2019; 1-10
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