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BUOYANCY OPPOSED MIXED CONVECTION IN A TWO-SIDED LID-DRIVEN DIFFERENTIALLY HEATED SQUARE CAVITY FILLED WITH A POROUS MEDIUM

Volume 13, Issue 12, 2010, pp. 1059-1072
DOI: 10.1615/JPorMedia.v13.i12.20
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ABSTRACT

Mixed convection flow in a two-dimensional square cavity filled with a Darcian fluid-saturated uniform porous medium is considered. The cold vertical wall at the left is moving up whereas the hot wall in the right is moving down. The fixed top and the bottom walls are thermally insulated. The normalized governing equations are solved numerically with appropriate boundary conditions by finite volume approach. The code has been validated with previously published work and the results are found to be in excellent agreement. The study is conducted by varying the Richardson number Ri = (Gr/Re2)[Ri = (Gr/Re2)], Darcy number (Da = κ/H2κ, Grashof number Gr = (gβΔTH3/v2)[Gr = (gβΔTH3/v2)]. The Prandtl number is fixed at 0.71. A parametric study is conducted and a set of streamlines and isotherm plots are presented. A heat transfer correlation is also presented.

CITED BY
  1. Roy Monisha, Roy S., Basak Tanmay, Finite element simulations on heatline trajectories for mixed convection in porous square enclosures: Effects of various moving walls, European Journal of Mechanics - B/Fluids, 59, 2016. Crossref

  2. Nield Donald A., Bejan Adrian, Mixed Convection, in Convection in Porous Media, 2017. Crossref

  3. Nield Donald A., Bejan Adrian, Mixed Convection, in Convection in Porous Media, 2013. Crossref

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