低凝固点水溶液による雪層の融解 : 第3報,移動拡散層モデルと固定拡散層モデルによる解析

概要

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The two new developments in the analysis are reported of melting of a snow layer with the combined effect of temperature and concentration, which are a moving diffusion layer model (MDL- Model) and a fixed diffusion layer model (FDL-Model). The conservation of mass is satisfied in the mass balance integral of both models. The diffusion layer thickness in the MDL-Model increases, while that in the FDL-Model is fixed during the melting process. The difference between a classical Stefan problem controlled by temperature diffusion and the present melting problem controlled by concentration diffusion is clearly observed. It is also found that the optimum initial thickness of the diffusion layer is about 0.04mm in the MDL-Model, and that the optimum fixed thickness of the diffusion layer in the FDL-Model is about 0.03 mm fitting the tickness by Nernst's concept for dissolution.
一般社団法人日本機械学会の論文
1994-08-25