The onset of Darcy-Brinkman convection in a porous layer using a thermal nonequlibrium model - Part I: Stress-free boundaries

A Postelnicu, D A S Rees

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

The paper deals with the onset of convection in a porous layer heated from below, by considering the case when the fluid and solid phases are not in local thermal equilibrium and when form-drag and boundary effects are included in the analysis. Analytical progress is facilitated by taking stress-free boundaries conditions. Asymptotic solutions for both small and large values of the scaled inter-phase heat transfer coeffcient, H, are presented and comparisons with the numerical solutions are performed. Excellent agreement is obtained between the asymptotic and the numerical results. Copyright © 2003 John Wiley and Sons, Ltd.
Original languageEnglish
Pages (from-to)961-973
Number of pages13
JournalInternational Journal of Energy Research
Volume27
Issue number10
DOIs
Publication statusPublished - 2003

Keywords

  • Phase transitions
  • Thermodynamics
  • Heat convection
  • Boundary layer flow
  • Numerical methods
  • Heat transfer coefficients
  • Porous materials
  • Drag

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