MHD natural convection in a partially open trapezoidal cavity filled with a nanofluid

Igor V. Miroshnichenko, Mikhail A. Sheremet, Hakan F. Oztop, Khaled Al-Salem

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

A numerical study of natural convection in a partially open trapezoidal cavity filled with a CuO nanofluid under the effect of uniform magnetic field of various orientations has been carried out. Inclined wall of the cavity is heated, horizontal walls are adiabatic while cold nanofluid enters into the cavity from an open boundary. To analyze the effects of magnetic field intensity and its inclination angle with nanoparticles volume fraction, the finite difference method has been utilized to solve the governing equations formulated in dimensionless stream function, vorticity and temperature. Analysis has been conducted in a wide range of governing parameters such as Rayleigh number (Ra=103–105), Prandtl number (Pr=7.0), Hartmann number (Ha=0, 10, 50, 100), inclination angle of magnetic field (α=0–π) and nanoparticles volume fraction (0≤ϕ≤0.04). It has been found that an increase in Hartmann number leads to the heat transfer reduction, while an increase in the nanoparticles volume fraction reflects the heat transfer enhancement.

Original languageEnglish
Pages (from-to)294-302
Number of pages9
JournalInternational Journal of Mechanical Sciences
Volume119
DOIs
Publication statusPublished - 1 Dec 2016

Fingerprint

Magnetohydrodynamics
Natural convection
free convection
Hartmann number
Volume fraction
Magnetic fields
Nanoparticles
nanoparticles
cavities
inclination
heat transfer
Heat transfer
Prandtl number
Rayleigh number
Vorticity
magnetic fields
Finite difference method
vorticity
magnetic flux
augmentation

Keywords

  • Inclined uniform magnetic field
  • Nanofluid
  • Natural convection
  • Numerical results
  • Partially open trapezoidal cavity

ASJC Scopus subject areas

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

Cite this

MHD natural convection in a partially open trapezoidal cavity filled with a nanofluid. / Miroshnichenko, Igor V.; Sheremet, Mikhail A.; Oztop, Hakan F.; Al-Salem, Khaled.

In: International Journal of Mechanical Sciences, Vol. 119, 01.12.2016, p. 294-302.

Research output: Contribution to journalArticle

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