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Lattice boltzmann simulation of plume behavior from an eccentric annulus cylinder

Samion, Syahrullail and Che Sidik, Nor Azwadi (2010) Lattice boltzmann simulation of plume behavior from an eccentric annulus cylinder. International Journal of Mechanical and Materials Engineering, 5 (2). 129 - 135. ISSN 1823-0334

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Abstract

In this paper, a double-population thermal lattice Boltzmann was applied to solve two dimensional, incompressible, thermal fluid flow problems. The simplest lattice BGK D2Q4 model was applied to determine the temperature field while D2Q9 for the density and velocity fields. The simulation of natural convection from a concentrically and eccentrically placed inner heated cylinder inside cold outer cylinder with Prandtl number 0.71 and Rayleigh number 5 x was observed that the combination of D2Q4 and D2Q9 10 5 were carried out and discussed quantitatively. It was able to reproduce the effect of buoyancy force in the system. We also found that the flow pattern including the boundary layers and vortices with heat transfer mechanisms is significantly influenced by the position of heated cylinder in the enclosure and excellent comparisons with previous studies.

Item Type:Article
Uncontrolled Keywords:double population, lattice boltzmann, distribution function, BGK collision, natural convection
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:26287
Deposited By: Liza Porijo
Deposited On:29 Jun 2012 03:46
Last Modified:23 Jul 2012 02:53

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