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Numerical Results

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Part of the SpringerBriefs in Applied Sciences and Technology book series (BRIEFSAPPLSCIENCES)

Abstract

Results of the numerical solution of the mass conservation, DBF, and energy equations are presented. Verification of the solution method is first obtained by reproducing solutions for Rayleigh-Bénard convection, the Horton-Lapwood-Rogers program, and natural convection in fluid-superposed porous layers. For mixed convection in the fluid-superposed porous layer, Nusselt numbers are determined for a wide range of parameter effects: conductivity ratio, thermal dispersion, Prandtl number, Darcy number, and porous layer height ratio. Péclet numbers at which a minimum in the heat transfer coefficient occurs are determined in terms of combinations of these parameters.

Keywords

Nusselt number Rayleigh-Darcy number Critical Péclet number Critical porous sublayer height Sublayer critical Rayleigh number Thermal plume 

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Copyright information

© The Author(s) 2017

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of South FloridaTampaUSA
  2. 2.Department of Mechanical EngineeringUniversity of MinnesotaMinneapolisUSA

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