Title: Numerical study of natural convection heat transfer of air flow inside a corrugated enclosure in the presence of an inclined heated plate

Authors: Salam Hadi Hussain; Riyadh Sabah; Farooq Hassan Ali

Addresses: Mechanical Engineering Department, College of Engineering, Babylon University, Babylon Province, Iraq ' Mechanical Engineering Department, College of Engineering, Babylon University, Babylon Province, Iraq ' Mechanical Engineering Department, College of Engineering, Babylon University, Babylon Province, Iraq

Abstract: A steady laminar natural convection of air flow in a sinusoidal corrugated enclosure containing a tilted hot thin plate located symmetrically at its centreline is numerically studied. The enclosure horizontal walls are adiabatic, while the vertical walls are sinusoidal corrugated with corrugation frequencies varied from 1 to 3 and kept at cold temperature. Finite volume was used to solve governing equations. Calculations have been made for Rayleigh numbers ranging from 10³ to 10⁶ and Prandtl number was taken to be 0.71. The average Nusselt number is found to increase as Rayleigh number increases and it slightly increases with corrugation frequency.

Keywords: natural convection; thin plates; corrugation frequency; corregated enclosures; finite volume method; convection heat transfer; air flow; inclined heated plates; laminar flow; average Nusselt number.

DOI: 10.1504/PCFD.2013.050648

Progress in Computational Fluid Dynamics, An International Journal, 2013 Vol.13 No.1, pp.34 - 43

Published online: 31 Oct 2013 *

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