کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1140829 1489445 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lattice Boltzmann simulation of natural convection in porous media
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Lattice Boltzmann simulation of natural convection in porous media
چکیده انگلیسی

This paper confirms the reliability and the computational efficiency of the lattice Boltzmann method in simulating natural convection in porous media at the representative elementary volume scale. The influence of porous media is considered by introducing the porosity to the equilibrium distribution function and by adding a force term to the evolution equation. The temperature field is simulated by a simplified thermal energy distribution function which neglects the compression work done by the pressure and the viscous heat dissipation. A comprehensive parametric study of natural convective flows is carried out for various values of Rayleigh number, of Darcy number, and of porosity. The comparison of solutions between the present model and earlier studies shows good quantitative agreement for the whole range of Darcy and Rayleigh numbers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mathematics and Computers in Simulation - Volume 72, Issues 2–6, 9 September 2006, Pages 195–200
نویسندگان
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