Effect of thermal dispersion and viscous dissipation on MHD radiative non-Darcy mixed convection in a fluid saturated porous medium

Author & Affiliation:
V.V. Sobha
Department of Engineering Mathematic, A.U.. College of Engineering. Andhra University, Visakhapatnam (INDIA)
K. Rama Krishna
Principal, Loyola Institute of Technology and Management, Sattenapalli, (INDIA)
R.K. Kondragunta
Research Scholar, Department of Mathematics, K.L. College of Engineering, Vaddeswaram (INDIA)
Keyword:
Thermal dispersion, viscous dissipation, MHD, Mixed convection, Porous medium, Radiation
Issue Date:
August 2009
Abstract:

The present paper is aimed at analyzing magneto hydrodynamic mixed convective flow and heat transfer about a non-isothermal vertical wall embedded in a porous medium. The Frochheimer extension is considered and the effects of thermal dispersion, Radiation and viscous dissipation in aiding and opposing flow conditions are examined. The wall temperature in excess of constant temperature of the ambient fluid is assumed to be proportional to x2 The effects of thermal dispersion and viscous dissipation on heat transfer rate are examined under the above-specified conditions and are presented in graphical form. The observations revealed that both thermal dispersion and viscous dissipation enhances the heat transfer rate. However under high magnetic fields their effect is found negligible. Velocity, temperature profiles and Nusselt number variation under different conditions are also presented.

Pages:
423-432
ISSN:
2319-8044 (Online) - 2231-346X (Print)
Source:
DOI:
jusps-A
Share This:
Facebook Twitter Google Plus LinkedIn Reddit

Copy the following to cite this article:

V. Sobha; K. R. Krishna; R. Kondragunta, "Effect of thermal dispersion and viscous dissipation on MHD radiative non-Darcy mixed convection in a fluid saturated porous medium", Journal of Ultra Scientist of Physical Sciences, Volume 21, Issue 2, Page Number 423-432, 2018

Copy the following to cite this URL:

V. Sobha; K. R. Krishna; R. Kondragunta, "Effect of thermal dispersion and viscous dissipation on MHD radiative non-Darcy mixed convection in a fluid saturated porous medium", Journal of Ultra Scientist of Physical Sciences, Volume 21, Issue 2, Page Number 423-432, 2018

Available from: https://www.ultrascientist.org/paper/1204/

Ansari Education And Research Society
Facebook Google Plus Twitter