Abstract
The frost formation is highly complex as it involves both transient heat and mass transfer. It has significant effects on various industries such as aviation and refrigeration. In recent years, numerous researchers have focused on the periods of frost growth using physical, mathematical, and experimental methods for various geometries. But, despite inclined surfaces under natural convection being widely used in the industries, there has been limited research on frost growth on these surfaces. Therefore, the purpose of this study is to investigate the characteristics of frost growth on inclined surfaces. For these aims the Lattice–Boltzmann method (LBM) is used. The findings indicate that an increase in the inclination angle of the cold surface leads to a decrease in frost thickness. Also, it is evident that increasing the temperature difference between the ambient and cold surface causes a reduction in the differences in frost thickness across various inclination angles. Also, under same ambient and cold surface temperatures, a higher humidity yields a greater driving force for mass transfer. Consequently, this leads to a reduction in differences in frost thickness at different surface angles. Finally, results indicate that the relative error between experimental and numerical results ranges from 5 to 27%.
Published Version
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