Title: Conduction-combined forced and natural convection in a lid-driven parallelogram-shaped enclosure divided by a solid partition

Authors: Ali J. Chamkha; Salam Hadi Hussain; Farooq Hassan Ali; Ahmed Ali Shaker

Addresses: Manufacturing Engineering Department, The Public Authority for Applied Education and Training, P.O. Box 42325, Shuweikh 70654, Kuwait ' 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, AI-Qadissiya University, AI-Qadissiya Province, Iraq

Abstract: Conduction-combined forced and natural convection heat transfer flow of air in a differentially heated lid-driven parallelogram-shaped enclosure divided by a solid partition has been formulated and solved numerically using the finite-volume method with the SIMPLE algorithm. For the two-dimensional problem, numerical solutions are obtained for a wide range of Richardson numbers (0.1 ≤ Ri ≤ 10), inclination angles of enclosure from the vertical direction (−60° ≤ Φ ≤ 60°), and thermal conductivity ratios (0.001 ≤ K ≤ 10). The results indicate that all of the studied parameters and direction of moving lid have significant effects on Nusselt number and the average skin friction coefficient.

Keywords: mixed convection; conjugate; lid-driven enclosures; parallelogram; partition; finite volume method; forced convection; air flow; natural convection; inclination angles; thermal conductivity; Nusselt number; skin friction coefficient.

DOI: 10.1504/PCFD.2012.049101

Progress in Computational Fluid Dynamics, An International Journal, 2012 Vol.12 No.5, pp.309 - 321

Available online: 13 Sep 2012 *

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