Heatline visualization of natural convection in an inclined square porous enclosure with sinusoidal boundary conditions

H. Saleh, Ishak Hashim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Convection in an inclined square porous enclosure with sinusoidally varying wall temperatures is visualized and analyzed by the heatline concept. The Darcy model is used in the mathematical formulation for the porous layer and the COMSOL Multiphysics software is applied to solve the dimensionless governing equations. The governing parameters considered are the amplitude ratio, 0.0 ≤ σ ≤ 1.0, the phase deviation, 0 ≤ P ≤ p, the inclination angle of the enclosure, 0. ≤ φ ≤ 90., and the Rayleigh number, 50 ≤ Ra ≤ 1000. Generally, decreasing the inclination angle was found to increase the number of cells in the enclosure and decrease the heat transfer rate. Combination of the sinusoidal and cosinusoidal temperature profiles on the vertical walls produced the highest heat transfer rate.

Original languageEnglish
Pages (from-to)875-885
Number of pages11
JournalJournal of Porous Media
Volume16
Issue number10
DOIs
Publication statusPublished - 2013

Fingerprint

Natural Convection
Enclosure
Inclined
enclosure
Enclosures
Natural convection
free convection
Visualization
Inclination
Boundary conditions
boundary conditions
inclination
Heat Transfer
heat transfer
phase deviation
Heat transfer
Angle
Multiphysics
wall temperature
Rayleigh number

Keywords

  • Darcy's law
  • Heatline visualization
  • Natural convection
  • Sinusoidal temperature profile

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Modelling and Simulation
  • Biomedical Engineering

Cite this

Heatline visualization of natural convection in an inclined square porous enclosure with sinusoidal boundary conditions. / Saleh, H.; Hashim, Ishak.

In: Journal of Porous Media, Vol. 16, No. 10, 2013, p. 875-885.

Research output: Contribution to journalArticle

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