Effect of surface emissivity on conjugate turbulent natural convection in an air-filled cavity with a heat source

Igor V. Miroshnichenko, Mikhail A. Sheremet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The interaction of conjugate turbulent natural convection and surface thermal radiation in an air-filled square enclosure having heat-conducting solid walls of finite thickness and a heat source has been numerically studied. The primary focus was on the influence of surface emissivity on complex heat transfer. The mathematical model has been formulated in dimensionless variables such as stream function, vorticity and temperature using κ-ε turbulent model. The effect of surface emissivity on the average total Nusselt number has been defined. The distributions of streamlines and temperature fields, describing characteristics of the analyzed fluid flow and heat transfer have been obtained. The results clearly show an essential effect of surface radiation on unsteady turbulent heat transfer.

Original languageEnglish
Title of host publicationHigh Technology
Subtitle of host publicationResearch and Applications, 2015
PublisherTrans Tech Publications Ltd
Pages315-319
Number of pages5
ISBN (Print)9783038357087
DOIs
Publication statusPublished - 1 Jan 2016
Event4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015 - Tomsk, Russian Federation
Duration: 21 Apr 201524 Apr 2015

Publication series

NameKey Engineering Materials
Volume685
ISSN (Print)1013-9826

Conference

Conference4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015
CountryRussian Federation
CityTomsk
Period21.4.1524.4.15

Keywords

  • Conjugate natural convection
  • Heat source
  • Numerical simulation
  • Surface thermal radiation
  • Turbulence

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Miroshnichenko, I. V., & Sheremet, M. A. (2016). Effect of surface emissivity on conjugate turbulent natural convection in an air-filled cavity with a heat source. In High Technology: Research and Applications, 2015 (pp. 315-319). (Key Engineering Materials; Vol. 685). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.685.315