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本文对管内液体冻结过程的传热进行了分析,分别利用改变变量法和等效热容法计算,对一维空间变量的问题,利用改变变量法给出了新的计算方法.将数值计算的结果与实验值及文献值进行了比较,吻合较好,本文所报道的方法,可适用于有相变潜热的非线性的热传导问题.
In this paper, the heat transfer of the liquid in the tube during the freezing process is analyzed. By using the method of changing variables and the equivalent heat capacity method respectively, a new calculation method is given for the one-dimensional space variables by using the method of changing variables. The results are in good agreement with the experimental values and the literature values. The method reported in this paper can be applied to the nonlinear heat conduction problems with latent heat of transformation.