Thermal-diffusion and diffusion-thermo effects on combined heat and mass transfer of a steady MHD convective and slip flow due to a rotating disk with viscous dissipation and Ohmic heating

Emmanuel Osalusi, Jonathan Charles Side, Robert Ewan Harris

Research output: Contribution to journalArticle

Abstract

Thermo-diffusion (Soret effect) and diffusion-thermo (Dufour effect) effects on combined heat and mass transfer of a steady hydromagnetic convective and slip flow due to a rotating disk in the presence of viscous dissipation and Ohmic heating is investigated. The partial differential equations governing the problem under consideration have been transformed by a similarity transformation into a system of ordinary differential equations which are solved numerically by applying the shooting method. For fluids of medium molecular weight (H2, air), profiles of the dimensionless velocity, temperature and concentration distributions are shown graphically for various values of slip parameter ?, magnetic field parameter M, Eckert Ec, Schmidt Sc, Dufour Du and Soret Sr numbers. Finally, numerical values of physical quantities, such as the local skin friction coefficient, the local Nusselt number and the local Sherwood number are presented in tabular form. © 2008 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)908-915
Number of pages8
JournalInternational Communications in Heat and Mass Transfer
Volume35
Issue number8
DOIs
Publication statusPublished - Oct 2008

Fingerprint

slip flow
convective flow
rotating disks
thermal diffusion
mass transfer
dissipation
heat transfer
heating
skin friction
Nusselt number
partial differential equations
coefficient of friction
magnetohydrodynamics
molecular weight
temperature distribution
slip
differential equations
velocity distribution
fluids
air

Keywords

  • Dufour effect
  • Heat transfer
  • Rotating disk
  • Shooting method
  • Soret effect

Cite this

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title = "Thermal-diffusion and diffusion-thermo effects on combined heat and mass transfer of a steady MHD convective and slip flow due to a rotating disk with viscous dissipation and Ohmic heating",
abstract = "Thermo-diffusion (Soret effect) and diffusion-thermo (Dufour effect) effects on combined heat and mass transfer of a steady hydromagnetic convective and slip flow due to a rotating disk in the presence of viscous dissipation and Ohmic heating is investigated. The partial differential equations governing the problem under consideration have been transformed by a similarity transformation into a system of ordinary differential equations which are solved numerically by applying the shooting method. For fluids of medium molecular weight (H2, air), profiles of the dimensionless velocity, temperature and concentration distributions are shown graphically for various values of slip parameter ?, magnetic field parameter M, Eckert Ec, Schmidt Sc, Dufour Du and Soret Sr numbers. Finally, numerical values of physical quantities, such as the local skin friction coefficient, the local Nusselt number and the local Sherwood number are presented in tabular form. {\circledC} 2008 Elsevier Ltd. All rights reserved.",
keywords = "Dufour effect, Heat transfer, Rotating disk, Shooting method, Soret effect",
author = "Emmanuel Osalusi and Side, {Jonathan Charles} and Harris, {Robert Ewan}",
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TY - JOUR

T1 - Thermal-diffusion and diffusion-thermo effects on combined heat and mass transfer of a steady MHD convective and slip flow due to a rotating disk with viscous dissipation and Ohmic heating

AU - Osalusi, Emmanuel

AU - Side, Jonathan Charles

AU - Harris, Robert Ewan

PY - 2008/10

Y1 - 2008/10

N2 - Thermo-diffusion (Soret effect) and diffusion-thermo (Dufour effect) effects on combined heat and mass transfer of a steady hydromagnetic convective and slip flow due to a rotating disk in the presence of viscous dissipation and Ohmic heating is investigated. The partial differential equations governing the problem under consideration have been transformed by a similarity transformation into a system of ordinary differential equations which are solved numerically by applying the shooting method. For fluids of medium molecular weight (H2, air), profiles of the dimensionless velocity, temperature and concentration distributions are shown graphically for various values of slip parameter ?, magnetic field parameter M, Eckert Ec, Schmidt Sc, Dufour Du and Soret Sr numbers. Finally, numerical values of physical quantities, such as the local skin friction coefficient, the local Nusselt number and the local Sherwood number are presented in tabular form. © 2008 Elsevier Ltd. All rights reserved.

AB - Thermo-diffusion (Soret effect) and diffusion-thermo (Dufour effect) effects on combined heat and mass transfer of a steady hydromagnetic convective and slip flow due to a rotating disk in the presence of viscous dissipation and Ohmic heating is investigated. The partial differential equations governing the problem under consideration have been transformed by a similarity transformation into a system of ordinary differential equations which are solved numerically by applying the shooting method. For fluids of medium molecular weight (H2, air), profiles of the dimensionless velocity, temperature and concentration distributions are shown graphically for various values of slip parameter ?, magnetic field parameter M, Eckert Ec, Schmidt Sc, Dufour Du and Soret Sr numbers. Finally, numerical values of physical quantities, such as the local skin friction coefficient, the local Nusselt number and the local Sherwood number are presented in tabular form. © 2008 Elsevier Ltd. All rights reserved.

KW - Dufour effect

KW - Heat transfer

KW - Rotating disk

KW - Shooting method

KW - Soret effect

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U2 - 10.1016/j.icheatmasstransfer.2008.04.011

DO - 10.1016/j.icheatmasstransfer.2008.04.011

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JO - International Communications in Heat and Mass Transfer

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