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Virtual investigation of free convection from concentric annulus cylinder by the finite difference lattice boltzmann method

Azmira, O. Shahrul and Nor Azwadib, C. S. (2009) Virtual investigation of free convection from concentric annulus cylinder by the finite difference lattice boltzmann method. In: The 2nd International Meeting on Advances in Thermo-Fluids (IMAT) 2009, 2009, Taman Safari, Bogor, Indonesia.

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Official URL: http://dx.doi.org/10.1063/1.3464838

Abstract

This paper presents numerical study of flow behavior from a heated concentric annulus cylinder at various Rayleigh number Ra, Prandtl number Pr while the aspect ratio is fixed to 5.0 of the outer and inner cylinders. The Finite Different Lattice Boltzmann Method (FDLBM) numerical scheme is proposed to improve the computational efficiency and numerical stability of the conventional method. The proposed FELBM applied UTOPIA approach (third order accuracy in space) to study the temperature distribution and the vortex formation in the annulus cylinder. The comparison of the flow pattern and temperature distribution for every case via streamline, vortices and temperature distribution contour with published paper in literature were carried out for the validation purposes. Current investigation concluded that the UTOPIA FDLBM is an efficient approach for the current problem in hand and good agreement with the benchmark solution.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:16109
Deposited By: Liza Porijo
Deposited On:19 Oct 2011 04:54
Last Modified:19 Oct 2011 04:54

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