Conjugate Natural Convection in a Closed Domain Containing a Heat-Releasing Element with a Constant Heat-Release Intensity

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3 Citations (Scopus)

Abstract

Mathematical modeling of gravitational heat convection in a closed rectangular domain with finite-thickness heat-conducting walls in the presence of a heat-releasing element with a constant heat-release intensity located at the base of the domain under conditions of convective-radiative heat transfer on one external boundary is performed. The influence of constitutive parameters (Grashof number and relative thermal conductivity) and flow unsteadiness on local thermohydrodynamic characteristics (streamlines and temperature field) and on the integral parameter (mean Nusselt number on the inner surface of the solid walls) is analyzed. Results obtained for two models of the heat source (with a constant temperature and with a constant heat-release intensity) are compared.

Original languageEnglish
Pages (from-to)699-712
Number of pages14
JournalJournal of Applied Mechanics and Technical Physics
Volume51
Issue number5
DOIs
Publication statusPublished - 1 Sep 2010

Fingerprint

releasing
Natural convection
free convection
heat
Grashof number
Heat convection
radiative heat transfer
convective heat transfer
Nusselt number
heat sources
Thermal conductivity
Temperature distribution
temperature distribution
convection
thermal conductivity
Hot Temperature
Heat transfer
conduction
Temperature
temperature

Keywords

  • conjugate heat transfer
  • heat-releasing element with a constant heat-release intensity
  • laminar flow regime
  • natural convection

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "Mathematical modeling of gravitational heat convection in a closed rectangular domain with finite-thickness heat-conducting walls in the presence of a heat-releasing element with a constant heat-release intensity located at the base of the domain under conditions of convective-radiative heat transfer on one external boundary is performed. The influence of constitutive parameters (Grashof number and relative thermal conductivity) and flow unsteadiness on local thermohydrodynamic characteristics (streamlines and temperature field) and on the integral parameter (mean Nusselt number on the inner surface of the solid walls) is analyzed. Results obtained for two models of the heat source (with a constant temperature and with a constant heat-release intensity) are compared.",
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author = "Kuznetsov, {G. V.} and Sheremet, {M. A.}",
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T1 - Conjugate Natural Convection in a Closed Domain Containing a Heat-Releasing Element with a Constant Heat-Release Intensity

AU - Kuznetsov, G. V.

AU - Sheremet, M. A.

PY - 2010/9/1

Y1 - 2010/9/1

N2 - Mathematical modeling of gravitational heat convection in a closed rectangular domain with finite-thickness heat-conducting walls in the presence of a heat-releasing element with a constant heat-release intensity located at the base of the domain under conditions of convective-radiative heat transfer on one external boundary is performed. The influence of constitutive parameters (Grashof number and relative thermal conductivity) and flow unsteadiness on local thermohydrodynamic characteristics (streamlines and temperature field) and on the integral parameter (mean Nusselt number on the inner surface of the solid walls) is analyzed. Results obtained for two models of the heat source (with a constant temperature and with a constant heat-release intensity) are compared.

AB - Mathematical modeling of gravitational heat convection in a closed rectangular domain with finite-thickness heat-conducting walls in the presence of a heat-releasing element with a constant heat-release intensity located at the base of the domain under conditions of convective-radiative heat transfer on one external boundary is performed. The influence of constitutive parameters (Grashof number and relative thermal conductivity) and flow unsteadiness on local thermohydrodynamic characteristics (streamlines and temperature field) and on the integral parameter (mean Nusselt number on the inner surface of the solid walls) is analyzed. Results obtained for two models of the heat source (with a constant temperature and with a constant heat-release intensity) are compared.

KW - conjugate heat transfer

KW - heat-releasing element with a constant heat-release intensity

KW - laminar flow regime

KW - natural convection

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