Natural convection in a square cavity filled with a porous medium saturated with a nanofluid using the thermal nonequilibrium model with a Tiwari and Das nanofluid model

M. A. Sheremet, I. Pop, Roslinda Mohd. Nazar

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

In this paper, natural convective heat transfer in a differentially heated square porous cavity filled with a nanofluid and using a two-temperature model for the heat transfer and the Tiwari and Das nanofluid model has been studied numerically. The two-temperature model employed allows us to analyze the fluid flow and heat transfer when the nanofluid and solid matrix are not in local thermal equilibrium. The boundary value problem formulated, in terms of the dimensionless stream function and temperature in the nanofluid and solid matrix, has been solved numerically using a second-order accurate finite difference method. Based on the results obtained, the adding of solid nanoparticles to the base fluid suppresses the convective flow. Further, it is concluded that the heat transfer in the nanofluid reduces as the the nanofluid/solid-matrix interface heat transfer parameter reduces.

Original languageEnglish
Pages (from-to)312-321
Number of pages10
JournalInternational Journal of Mechanical Sciences
Volume100
DOIs
Publication statusPublished - 30 Jul 2015

Fingerprint

Natural convection
free convection
Porous materials
heat transfer
Heat transfer
cavities
matrices
convective flow
convective heat transfer
boundary value problems
fluid flow
temperature
Finite difference method
Temperature
Boundary value problems
Flow of fluids
nanoparticles
Hot Temperature
fluids
Nanoparticles

Keywords

  • Nanofluids
  • Natural convection
  • Numerical method
  • Square porous cavity
  • Thermal nonequilibrium model

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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title = "Natural convection in a square cavity filled with a porous medium saturated with a nanofluid using the thermal nonequilibrium model with a Tiwari and Das nanofluid model",
abstract = "In this paper, natural convective heat transfer in a differentially heated square porous cavity filled with a nanofluid and using a two-temperature model for the heat transfer and the Tiwari and Das nanofluid model has been studied numerically. The two-temperature model employed allows us to analyze the fluid flow and heat transfer when the nanofluid and solid matrix are not in local thermal equilibrium. The boundary value problem formulated, in terms of the dimensionless stream function and temperature in the nanofluid and solid matrix, has been solved numerically using a second-order accurate finite difference method. Based on the results obtained, the adding of solid nanoparticles to the base fluid suppresses the convective flow. Further, it is concluded that the heat transfer in the nanofluid reduces as the the nanofluid/solid-matrix interface heat transfer parameter reduces.",
keywords = "Nanofluids, Natural convection, Numerical method, Square porous cavity, Thermal nonequilibrium model",
author = "Sheremet, {M. A.} and I. Pop and {Mohd. Nazar}, Roslinda",
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T1 - Natural convection in a square cavity filled with a porous medium saturated with a nanofluid using the thermal nonequilibrium model with a Tiwari and Das nanofluid model

AU - Sheremet, M. A.

AU - Pop, I.

AU - Mohd. Nazar, Roslinda

PY - 2015/7/30

Y1 - 2015/7/30

N2 - In this paper, natural convective heat transfer in a differentially heated square porous cavity filled with a nanofluid and using a two-temperature model for the heat transfer and the Tiwari and Das nanofluid model has been studied numerically. The two-temperature model employed allows us to analyze the fluid flow and heat transfer when the nanofluid and solid matrix are not in local thermal equilibrium. The boundary value problem formulated, in terms of the dimensionless stream function and temperature in the nanofluid and solid matrix, has been solved numerically using a second-order accurate finite difference method. Based on the results obtained, the adding of solid nanoparticles to the base fluid suppresses the convective flow. Further, it is concluded that the heat transfer in the nanofluid reduces as the the nanofluid/solid-matrix interface heat transfer parameter reduces.

AB - In this paper, natural convective heat transfer in a differentially heated square porous cavity filled with a nanofluid and using a two-temperature model for the heat transfer and the Tiwari and Das nanofluid model has been studied numerically. The two-temperature model employed allows us to analyze the fluid flow and heat transfer when the nanofluid and solid matrix are not in local thermal equilibrium. The boundary value problem formulated, in terms of the dimensionless stream function and temperature in the nanofluid and solid matrix, has been solved numerically using a second-order accurate finite difference method. Based on the results obtained, the adding of solid nanoparticles to the base fluid suppresses the convective flow. Further, it is concluded that the heat transfer in the nanofluid reduces as the the nanofluid/solid-matrix interface heat transfer parameter reduces.

KW - Nanofluids

KW - Natural convection

KW - Numerical method

KW - Square porous cavity

KW - Thermal nonequilibrium model

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