• ISSN 0258-2724
  • CN 51-1277/U
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Volume 19 Issue 1
Feb.  2006
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Article Contents
ZHAO Xin, WEN Ze-feng, JIN Xue-song. Numerical Simulation of Temperature Field in Process of Casting Solidification[J]. Journal of Southwest Jiaotong University, 2006, 19(1): 15-19.
Citation: ZHAO Xin, WEN Ze-feng, JIN Xue-song. Numerical Simulation of Temperature Field in Process of Casting Solidification[J]. Journal of Southwest Jiaotong University, 2006, 19(1): 15-19.

Numerical Simulation of Temperature Field in Process of Casting Solidification

  • Received Date: 10 Dec 2004
  • Publish Date: 25 Feb 2006
  • In order to obtain the variation law of temperature during casting solidification to improve casting quality,a finite element method combining with a finite difference method was used to discretize time and space variables in the governing equations of astable heat-conduction in the process of casting solidification so as to obtain the algebraic equations for casting and mold temperature.In order to solve the coupled problem of the equations governing temperature in the casting and the mold,alternative method of two-domain and an iterative method were used.In addition,varying time steps were automatically controlled in the light of the grade of change in temperature in order to save calculation time.For simplicity,some assumptions about boundary conditions were made,i.e.,the distributions of temperature in the casting and the mold are uniform at the beginning.The linear models exqressing the release of latent heat of the casting were used for the revised coefficient of specific heat.The calculational results show that with this method the distribution of temperature in castings can be simulated.

     

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