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论文类型：期刊论文

发表时间：2010-04-01

发表刊物：INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER

收录刊物：SCIE、EI

卷号：37

期号：4

页面范围：385-392

ISSN号：0735-1933

关键字：Heat transfer; Phase change; Element-free Galerkin method; Sigmoid function

摘要：This paper presents a smoothed effective heat capacity model that is combined with element-free Galerkin (EFG) method, to solve heat transfer problems with phase change. The Sigmoid function is employed to build a continuous and smooth effective heat capacity function, so as to avoid possible error caused by the step-jump. The proposed numerical model is verified via numerical examples, and the effects of arrangement of EFG nodes and parameters relevant with Sigmoid function on the solutions are investigated. Satisfactory results are achieved in comparison with analytical solutions. (C) 2009 Elsevier Ltd. All rights reserved.