The mathematical model of solidification latent heat under high cooling rate

✍ Scribed by Yao Shan; Gong Xuena; Dai Lixin; Ma Chunying; Jin Junze; Abuliti Abudula

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 174 KB
• Volume: 35
• Category: Article
• ISSN: 1099-2871
• DOI: 10.1002/htj.20104

✦ Synopsis

Abstract

Treatment of solidification latent heat is a key point in solidification simulation by the finite difference method. When latent heat is dealt with in a traditional method of equivalent latent heat, it was found that heat was increased when casting with a high cooling rate, and then the simulation result was distorted. In this paper, a new method is proposed to deal with solidification latent heat. Moreover, a mathematical model was suggested, in which the latent heat can be dealt with accurately under high or normal cooling rates. By contrasting the simulation results from this new method with the traditional one, it was indicated that this new model can obtain more accurate simulation results than the traditional model under high or normal cooling rates. © 2006 Wiley Periodicals, Inc. Heat Trans Asian Res, 35(2): 115–121, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20104