Feng Xiang-Bo, Huo Shi-Fan, Xu Xiao-Tao, Liu Fei, Liu Qing
Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, China.
Shanxi Key Laboratory of Safety and Durability of Concrete Structures, College of Civil Engineering, Xijing University, Xi'an 710123, China.
Entropy (Basel). 2022 Dec 5;24(12):1779. doi: 10.3390/e24121779.
Convection melting in metal foam under sinusoidal temperature boundary conditions is numerically studied in the present study. A multiple-relaxation-time lattice Boltzmann method, in conjunction with the enthalpy approach, is constructed to model the melting process without iteration steps. The effects of the porosity, phase deviation, and periodicity parameter on the heat-transfer characteristics are investigated. For the cases considered in this work, it is found that the effects of the phase deviation and periodicity parameter on the melting rate are weak, but the melting front can be significantly affected by the sinusoidal temperature boundary conditions.
本研究对正弦温度边界条件下金属泡沫中的对流熔化进行了数值研究。构建了一种多松弛时间格子玻尔兹曼方法，并结合焓方法，以在无迭代步骤的情况下对熔化过程进行建模。研究了孔隙率、相位偏差和周期性参数对传热特性的影响。对于本工作中考虑的情况，发现相位偏差和周期性参数对熔化速率的影响较弱，但熔化前沿会受到正弦温度边界条件的显著影响。
