The onset of convection in an inclined anisotropic porous layer

D A S Rees, A Postelnicu

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

We consider the onset of convection in a porous layer heated from below. The layer is anisotropic with respect to both its permeability and diffusivity and is inclined to the horizontal. The aim of this work is to determine not only by how much the critical Rayleigh number varies when the layer is inclined, but also the wave number and the angle the roll makes with the direction about which the layer is inclined. We find that there is not always an abrupt transition between longitudinal and transverse rolls as the governing parameters are varied, but there is often a smooth transition between these states. © 2001 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)4127-4138
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume44
Issue number21
DOIs
Publication statusPublished - 2001

Keywords

  • Heat convection
  • Mesoporous materials
  • Diffusion
  • Mechanical permeability

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