关键词: 结晶度;传导传热;对流传热;质量传递;数学模型

Abstract: On the basis of molecular diffusion Fick′s law and principles of energy and mass conservation,a simplified model of frost growth on a surface is presented.Numerical calculation shows that the model can predict the regularity of frost growth with reality.It is in accord well with existent experimental data and other theoretical models

Key words: Crystallinity;Conductive heat transfer;Convective heat transfer;Mass transfer;Mathematical model