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Titolo:
Numerical analysis of nonlinear multiphase Stefan problems
Autore:
Cheng, TF;
Indirizzi:
Chang Jung Univ, Tainan 711, Taiwan Chang Jung Univ Tainan Taiwan 711Chang Jung Univ, Tainan 711, Taiwan
Titolo Testata:
COMPUTERS & STRUCTURES
fascicolo: 2, volume: 75, anno: 2000,
pagine: 225 - 233
SICI:
0045-7949(200003)75:2<225:NAONMS>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
LAPLACE TRANSFORM TECHNIQUE; PHASE-CHANGE;
Keywords:
multiphase stefan problem; hybrid numerical method; least-square iteration concept; Laplace transform; control-volume formulation; Taylor's series approximation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Cheng, TF Chang Jung Univ, Tainan 711, Taiwan Chang Jung Univ Tainan Taiwan 711 ung Univ, Tainan 711, Taiwan
Citazione:
T.F. Cheng, "Numerical analysis of nonlinear multiphase Stefan problems", COMPUT STRU, 75(2), 2000, pp. 225-233

Abstract

For some materials such as binary eutectic alloy, polymorphous materials, organic phase-change materials, and many others, the change of phases may take place over a temperature range. In the present study, a hybrid numerical method is employed to solve such multiphase Stefan problems with temperature-dependent thermal properties. The combination of Laplace transform technique, control-volume formulation and Taylor's series approximation is usedto solve the nonlinear heat conduction equation. The moving heat source concept is used to treat the phase-change interface. The least-square iteration scheme is applied to determine the location of the phase-change interface. It will be found that the present hybrid numerical method is applicable to analyze nonlinear phase-change problems with more than one moving boundary. (C) 2000 Elsevier Science Ltd. All rights reserved.

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Documento generato il 09/04/20 alle ore 00:19:42