Regularized lattice Boltzmann simulation of laminar natural convection in entrance region of 2D channels

被引：0

作者：

Basha, Mehaboob ^{[1
]}

Azwadi, C. S. Nor ^{[1
]}

机构：

[1] Univ Teknol Malaysia, Fac Mech Engn, Dept Thermofluid, Johor Baharu, Malaysia

来源：

MECHATRONICS AND COMPUTATIONAL MECHANICS | 2013年 / 307卷

关键词：

Lattice Boltzmann Method; multi-population distribution; natural convection; entrance region;

D O I：

10.4028/www.scientific.net/AMM.307.267

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents a numerical study of incompressible laminar natural convection in entrance region of two dimensional vertical and inclined channels using regularized lattice Boltzmann Bhatnaghar-Gross-Krook method. Individual distribution functions with lattice types D2Q9 and D2Q5 are considered to solve fluid flow and thermal fields, respectively. Rayleigh number and inclination angle are varied from 10(2) to 10(6) and 0 to 60 degrees, respectively. Distribution functions are introduced to mimic Bernoulli's equation for calculating pressure at the inlet. Predicted Nusselt numbers are compared with Nusselt numbers correlation. Averaged Nusselt numbers compare well with Nusselt number correlation of Bar-Cohen & Rohsenow.

引用

页码：267 / 270

页数：4

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