Rotation effects on non-Darcy convection in an enclosure filled with porous medium

H. Saleh, A. Y N Alhashash, Ishak Hashim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Natural convection heat transfer in a rotating, differentially heated enclosure is studied numerically in this paper taking into consideration the Forchheimer-Brinkman-extended Darcy model. The enclosure is filled with a fluid-saturated porous medium and executes a steady counterclockwise angular velocity about its longitudinal axis. The staggered grid arrangement together with the Marker and Cell (MAC) method was employed to solve the governing equations. The governing parameters considered are the porosity, 0.4≤ε≤0.99, the Darcy number, 0.005≤Da≤0.01 and the Taylor number, 8.9×104≤Ta≤3.8×105, and the centrifugal force is assumed weaker than the Coriolis force. It is found that higher porosities have weaker flow circulation when the Coriolis effect is smaller than the buoyancy effect. The global quantity of the heat transfer rate increases by increasing the porosity and the Darcy number and decreases by increasing the Taylor number.

Original languageEnglish
Pages (from-to)105-111
Number of pages7
JournalInternational Communications in Heat and Mass Transfer
Volume43
DOIs
Publication statusPublished - Apr 2013

Fingerprint

enclosure
Enclosures
Porous materials
convection
Porosity
porosity
heat transfer
Coriolis effect
Heat transfer
Coriolis force
centrifugal force
Angular velocity
angular velocity
Buoyancy
Natural convection
buoyancy
free convection
markers
grids
Fluids

Keywords

  • Forchheimer-Brinkman model
  • Natural convection
  • Rotating enclosure

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Rotation effects on non-Darcy convection in an enclosure filled with porous medium. / Saleh, H.; Alhashash, A. Y N; Hashim, Ishak.

In: International Communications in Heat and Mass Transfer, Vol. 43, 04.2013, p. 105-111.

Research output: Contribution to journalArticle

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