Natural Convective Heat Transfer Flow of Nanofluids Inside a Quarter-Circular Enclosure Using Nonhomogeneous Dynamic Model

M. J. Uddin, M. S. Alam, M. M. Rahman

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this paper, we have studied the problem of two-dimensional transient convective flow and heat transfer in nanofluids in a quarter-circular-shaped enclosure using newly proposed nonhomogeneous dynamic mathematical model. The round wall of the enclosure is maintained at constant low temperature and the variable thermal condition on the bottom heated wall is considered, whereas the vertical wall is regarded as adiabatic. The enclosure is permeated by an inclined uniform magnetic field. The Galerkin weighted residual finite element method has been employed to solve the governing nondimensional partial differential equations. The result shows that 1- to 10-nm-sized nanoparticles are uniform and stable in the solution. The external magnetic field and its direction control the flow pattern of nanofluid significantly. The average Nusselt number increases significantly, as nanoparticle volume fraction, magnetic field inclination angle and Rayleigh number increase. Average Nusselt number of cobalt–kerosene nanofluid is much higher than other 17 types of nanofluids which are studied in the present analysis. The flow behaviors and the heat transfer rates of 18 types of nanofluids have been presented for the scientific and engineering community to become familiar with such nanofluids and apply them in practical applications.

Original languageEnglish
Pages (from-to)1883-1901
Number of pages19
JournalArabian Journal for Science and Engineering
Volume42
Issue number5
DOIs
Publication statusPublished - May 1 2017

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Enclosures
Dynamic models
Magnetic fields
Nusselt number
Heat transfer
Nanoparticles
Flow patterns
Partial differential equations
Volume fraction
Mathematical models
Finite element method
Temperature

Keywords

  • Brownian diffusion
  • Finite element method
  • Heat transfer
  • Nanofluid
  • Nonhomogeneous dynamic model
  • Thermophoresis

ASJC Scopus subject areas

  • General

Cite this

Natural Convective Heat Transfer Flow of Nanofluids Inside a Quarter-Circular Enclosure Using Nonhomogeneous Dynamic Model. / Uddin, M. J.; Alam, M. S.; Rahman, M. M.

In: Arabian Journal for Science and Engineering, Vol. 42, No. 5, 01.05.2017, p. 1883-1901.

Research output: Contribution to journalArticle

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