Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Numerical Method for Violent Change of Temperature and Application to a Simple Model
Koichi HANASAKIJun-ichi KOKADONatsuo HATTA
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1981 Volume 67 Issue 11 Pages 1972-1980

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Abstract

Synopsis:
In order to improve the accuracy and computing time of the numerical simulation for a heat transfer problem where the rate of temperature change is extremely high, the authors have developed a unique method which is proposed in this paper.
The method, for a non-steady heat transfer equation, has a distinctive feature that two fundamental equations on the heat transfer phenomena, that is,
q=-λgradθ,
and
∂θ/∂t=-1/ρc div q
are utilized respectively in computation. In this way, it mainly becomes much easier to determine the increment time of computing cycle, Δt which considerably affects to the accuracy as well as computing time of the numerical simulation.
The detail of the method and discussion on results of some simulations are described here.

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© The Iron and Steel Institute of Japan
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