Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity

Abstract

Turbulent natural convection with the interaction of surface radiation in square enclosure has been numerically studied. The governing equations are solved contemporaneously by finite difference method to obtain the velocity, temperature and heat flux distributions. Turbulence has been modeled using the standard k-ε model. The change of convective and radiative Nusselt numbers with respect to time has been described. The analysis is carried out over a wide range of Rayleigh number from 10⁸ to 10¹⁰. The effect of this key parameter on temperature and velocity distributions, convective and radiative Nusselt numbers has been investigated. The results clearly demonstrate a significant effect of buoyancy ratio on unsteady turbulent heat transfer.

Original language	English
Title of host publication	IOP Conference Series: Materials Science and Engineering
Publisher	Institute of Physics Publishing
Volume	93
Edition	1
DOIs	https://doi.org/10.1088/1757-899X/93/1/012008
Publication status	Published - 13 Oct 2015
Event	21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015 - Tomsk, Russian Federation Duration: 5 Oct 2015 → 9 Oct 2015

Other

Other	21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015
Country	Russian Federation
City	Tomsk
Period	5.10.15 → 9.10.15

ASJC Scopus subject areas

Engineering(all)
Materials Science(all)

Access to Document

10.1088/1757-899X/93/1/012008

Fingerprint Dive into the research topics of 'Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity'. Together they form a unique fingerprint.

Cite this

Miroshnichenko, IV & Sheremet, MA 2015, Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity. in IOP Conference Series: Materials Science and Engineering. 1 edn, vol. 93, 012008, Institute of Physics Publishing, 21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015, Tomsk, Russian Federation, 5.10.15. https://doi.org/10.1088/1757-899X/93/1/012008

@inproceedings{051e8d56670241aab3a584db5e12125b,

title = "Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity",

abstract = "Turbulent natural convection with the interaction of surface radiation in square enclosure has been numerically studied. The governing equations are solved contemporaneously by finite difference method to obtain the velocity, temperature and heat flux distributions. Turbulence has been modeled using the standard k-ε model. The change of convective and radiative Nusselt numbers with respect to time has been described. The analysis is carried out over a wide range of Rayleigh number from 108 to 1010. The effect of this key parameter on temperature and velocity distributions, convective and radiative Nusselt numbers has been investigated. The results clearly demonstrate a significant effect of buoyancy ratio on unsteady turbulent heat transfer.",

author = "Miroshnichenko, {I. V.} and Sheremet, {M. A.}",

year = "2015",

month = oct,

day = "13",

doi = "10.1088/1757-899X/93/1/012008",

language = "English",

volume = "93",

booktitle = "IOP Conference Series: Materials Science and Engineering",

publisher = "Institute of Physics Publishing",

edition = "1",

note = "21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015 ; Conference date: 05-10-2015 Through 09-10-2015",

}

TY - GEN

T1 - Effect of buoyancy force on turbulent modes of complex heat transfer in an air-filled square cavity

AU - Miroshnichenko, I. V.

AU - Sheremet, M. A.

PY - 2015/10/13

Y1 - 2015/10/13

N2 - Turbulent natural convection with the interaction of surface radiation in square enclosure has been numerically studied. The governing equations are solved contemporaneously by finite difference method to obtain the velocity, temperature and heat flux distributions. Turbulence has been modeled using the standard k-ε model. The change of convective and radiative Nusselt numbers with respect to time has been described. The analysis is carried out over a wide range of Rayleigh number from 108 to 1010. The effect of this key parameter on temperature and velocity distributions, convective and radiative Nusselt numbers has been investigated. The results clearly demonstrate a significant effect of buoyancy ratio on unsteady turbulent heat transfer.

AB - Turbulent natural convection with the interaction of surface radiation in square enclosure has been numerically studied. The governing equations are solved contemporaneously by finite difference method to obtain the velocity, temperature and heat flux distributions. Turbulence has been modeled using the standard k-ε model. The change of convective and radiative Nusselt numbers with respect to time has been described. The analysis is carried out over a wide range of Rayleigh number from 108 to 1010. The effect of this key parameter on temperature and velocity distributions, convective and radiative Nusselt numbers has been investigated. The results clearly demonstrate a significant effect of buoyancy ratio on unsteady turbulent heat transfer.

UR - http://www.scopus.com/inward/record.url?scp=84947058244&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84947058244&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/93/1/012008

DO - 10.1088/1757-899X/93/1/012008

M3 - Conference contribution

AN - SCOPUS:84947058244

VL - 93

BT - IOP Conference Series: Materials Science and Engineering

PB - Institute of Physics Publishing

T2 - 21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015

Y2 - 5 October 2015 through 9 October 2015