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本文从研究导热系数的需要出发,建立了霜层结构的物理模型.从中引出了反映其结构的两个因子,应用这两个结构因子对相应单一结构的霜层有效导热系数的理论公式加以综合,得出了一个露层有效导热系数的无因次方程.对于受迫运动时平板的结霜实验数据,初步综合了结构因子随环境参数变化的无因次经验公式.本文提出的这两个无因次公式,可用于受迫运动时平板霜层生长参数的数值计算.
In this paper, the physical model of the frost layer structure is established based on the study of the thermal conductivity and the two factors that reflect the structure of the frost layer, and the theoretical formulas of the effective thermal conductivity of the frost layer with the single structure are synthesized , A dimensionless equation of the effective thermal conductivity of the dew is obtained.For the experimental data of the frost formation of the slab during the forced movement, the non-dimensional empirical formula of the change of the structure factor with the environmental parameters is initially summarized.The two The dimensionless formula can be used to calculate the growth parameters of flat frost layer under forced movement.