TY - JOUR
T1 - Double multiple-relaxation-time lattice Boltzmann model for solid-liquid phase change with natural convection in porous media
AU - Liu, Qing
AU - He, Ya Ling
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/7/17
Y1 - 2015/7/17
N2 - In this paper, a double multiple-relaxation-time lattice Boltzmann model is developed for simulating transient solid-liquid phase change problems in porous media at the representative elementary volume scale. The model uses two different multiple-relaxation-time lattice Boltzmann equations, one for the flow field and the other for the temperature field with nonlinear latent heat source term. The model is based on the generalized non-Darcy formulation, and the solid-liquid interface is traced through the liquid fraction which is determined by the enthalpy-based method. The present model is validated by numerical simulations of conduction melting in a semi-infinite space, solidification in a semi-infinite corner, and convection melting in a square cavity filled with porous media. The numerical results demonstrate the efficiency and accuracy of the present model for simulating transient solid-liquid phase change problems in porous media.
AB - In this paper, a double multiple-relaxation-time lattice Boltzmann model is developed for simulating transient solid-liquid phase change problems in porous media at the representative elementary volume scale. The model uses two different multiple-relaxation-time lattice Boltzmann equations, one for the flow field and the other for the temperature field with nonlinear latent heat source term. The model is based on the generalized non-Darcy formulation, and the solid-liquid interface is traced through the liquid fraction which is determined by the enthalpy-based method. The present model is validated by numerical simulations of conduction melting in a semi-infinite space, solidification in a semi-infinite corner, and convection melting in a square cavity filled with porous media. The numerical results demonstrate the efficiency and accuracy of the present model for simulating transient solid-liquid phase change problems in porous media.
KW - Enthalpy-based method
KW - Lattice Boltzmann model
KW - Multiple-relaxation-time
KW - Natural convection
KW - Porous media
KW - Solid-liquid phase change
UR - https://www.scopus.com/pages/publications/84937037715
U2 - 10.1016/j.physa.2015.06.018
DO - 10.1016/j.physa.2015.06.018
M3 - 文章
AN - SCOPUS:84937037715
SN - 0378-4371
VL - 438
SP - 94
EP - 106
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
ER -