Title: Combined convection in inclined porous lid-driven enclosures with sinusoidal thermal boundary condition on one wall

Authors: Hakan F. Oztop, Asaf Varol

Addresses: Department of Mechanical Education, Firat University, TR-23119, Elazig, Turkey. ' Technical Education Faculty, Firat University, TR-23119 Elazig, Turkey

Abstract: A numerical study has been performed to obtain combined convection field in an inclined porous lid-driven enclosures heated from one wall with a non-uniformly heater. The lid moves at constant speed and temperature. Darcy-Brinkman-Forchheimer model was adopted to write governing equations and they solved using finite volume method. A detailed parametric study has been presented for different Reynolds numbers (10 ≤ Re ≤ 1000), Grashof numbers (104 ≤ Gr ≤ 105), Darcy numbers (0.01 ≤ Da ≤ 0.1), porosity (0.6 ≤ ε ≤ 0.9) and inclination angle of enclosure (0° ≤ φ ≤ 180°). It is observed that flow field, temperature distribution and heat transfer are affected by inclination angle of the enclosure.

Keywords: porous medium; mixed convection; porosity; lid-driven enclosures; sinusoidal thermal boundary condition; flow field; temperature distribution; heat transfer; inclination angle; finite volume method.

DOI: 10.1504/PCFD.2009.023356

Progress in Computational Fluid Dynamics, An International Journal, 2009 Vol.9 No.2, pp.127 - 131

Published online: 19 Feb 2009 *

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