Mixed convective flow over a non-isothermal radiative Vertical surface embedded in a porous medium with Applied magnetic field

AUTHOR AND
AFFILIATION

K. Rama Krishna
Principal, Loyola Institute of Technology and Management, Sattenapalli, (INDIA)
V.V. Sobha
Department of Engineering Mathematics, A.U., College of Engineering, Andhra Pradesh Visakhapatnama (INDIA)
R.K. Kondragunta
Research Scholar, Department of Mathematics, K.L. College of Engineering, Vaddeswaram (INDIA)

KEYWORDS:

Mixed convection, Porous medium, Radiation, Variable Temperature, dissipation, MHD

Issue Date:

August 2009

Pages:

405-414

ISSN:

2319-8044 (Online) – 2231-346X (Print)

Source:

Vol.21 – No.2

PDF

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DOI:

jusps-A

ABSTRACT:

The present paper deals with magneto hydrodynamic mixed convection heat transfer analysis over a vertical surface embedded in saturated porous medium with variable wall temperature. The effects of transverse magnetic field, radiation heat transfer and dissipation are examined. The plate temperature in excess of constant temperature of the ambient fluid is assumed to be proportional to xl. The ratio of Rayleigh to Peclet number is taken as mixed convective parameter (Î) and the effect of Î>0 and Î<0 on the boundary layer solution is studied and presented in the graphical form. The boundary layer solutions are obtained by using similarity variables for Î>0 and Î<0. It is found that with the increase in l value and radiation parameter (F), the rate of heat transfer increases through medium. Different velocity and temperature profiles and Nusselt number variation for both buoyancy aiding flow and opposing flow are also presented.

Copy the following to cite this Article:

K. R. Krishna; V. S. ; R. Kondragunta, “Mixed convective flow over a non-isothermal radiative Vertical surface embedded in a porous medium with Applied magnetic field”, Journal of Ultra Scientist of Physical Sciences, Volume 21, Issue 2, Page Number 405-414, 2018


Copy the following to cite this URL:

K. R. Krishna; V. S. ; R. Kondragunta, “Mixed convective flow over a non-isothermal radiative Vertical surface embedded in a porous medium with Applied magnetic field”, Journal of Ultra Scientist of Physical Sciences, Volume 21, Issue 2, Page Number 405-414, 2018

Available from: http://www.ultrascientist.org/paper/1201/


The present paper deals with magneto hydrodynamic mixed convection heat transfer analysis over a vertical surface embedded in saturated porous medium with variable wall temperature. The effects of transverse magnetic field, radiation heat transfer and dissipation are examined. The plate temperature in excess of constant temperature of the ambient fluid is assumed to be proportional to xl. The ratio of Rayleigh to Peclet number is taken as mixed convective parameter (Î) and the effect of Î>0 and Î<0 on the boundary layer solution is studied and presented in the graphical form. The boundary layer solutions are obtained by using similarity variables for Î>0 and Î<0. It is found that with the increase in l value and radiation parameter (F), the rate of heat transfer increases through medium. Different velocity and temperature profiles and Nusselt number variation for both buoyancy aiding flow and opposing flow are also presented.