Numerical simulation of natural convection in an open-ended square cavity filled with porous medium by lattice Boltzmann method
作者： A. Haghshenas , M. Rafati Nasr , M.H. Rahimian
DOI: 10.1016/J.ICHEATMASSTRANSFER.2010.08.006
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摘要: Abstract In the present work, natural convection in an open-ended square cavity packed with porous medium is simulated. The double-population approach used to simulate hydrodynamic and thermal fields, Taylor series expansion least-squares-based lattice Boltzmann method has been implemented extend model. effect of a taken into account by introducing porosity equilibrium distribution function adding force term evolution equation. Brinkman–Forchheimer equation, which includes viscous inertial terms, applied predict heat transfer fluid dynamics non-Darcy regime. model validated previous literature. A comprehensive parametric study convective flows performed for various values Rayleigh number porosity. It found that these two parameters have considerable influence on transfer.
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