期刊
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
卷 29, 期 5, 页码 1469-1480出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ijheatfluidflow.2008.05.002
关键词
Lattice Boltzmann; Heat transfer; Melting; Convection
资金
- NSF [EAR 0439766.]
We develop a lattice Boltzmann method to couple thermal convection and pure-substance melting. The transition from conduction-dominated heat transfer to fully-developed convection is analyzed and scaling laws and previous numerical results are reproduced by our numerical method. We also investigate the limit in which thermal inertia (high Stefan number) cannot be neglected. We use our results to extend the scaling relations obtained at low Stefan number and establish the correlation between the melting front propagation and the Stefan number for fully-developed convection. We conclude by showing that the model presented here is particularly well-suited to study convection melting in geometrically complex media with many applications in geosciences. (C) 2008 Elsevier Inc. All rights reserved.
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