Conjugate natural convection in an enclosure with a heat source of constant heat transfer rate

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Abstract

A numerical study of two-dimensional transient natural convection in a rectangular enclosure having finite thickness heat-conducting walls with a heat source of constant heat transfer rate located on the inner side of the left wall in conditions of convection-radiation heat exchange with an environment on one of the external boundaries has been performed. Mathematical simulation has been carried out in terms of the dimensionless variables such as stream function - vorticity - temperature. Stream function, vorticity and energy equations have been solved by finite difference numerical method. The relevant governing parameters were: the Grashof number from 106 to 108, the Prandtl number, Pr = 0.7 and the conductivity ratio. Detailed results including streamlines and temperature profiles have been obtained.

Original languageEnglish
Pages (from-to)260-268
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Volume54
Issue number1-3
DOIs
Publication statusPublished - 15 Jan 2011

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Keywords

  • Conjugate heat transfer
  • Local heat source of constant heat transfer rate
  • Numerical simulation
  • Rectangular enclosure
  • Transient natural convection

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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