IJERT-EMS
IJERT-EMS

Effects of Magnetic Field and Internal Heat Generation on the onset of Rayleigh-Bénard Convection in Nanofluid


Effects of Magnetic Field and Internal Heat Generation on the onset of Rayleigh-Bénard Convection in Nanofluid
Authors : S. Pranesh, Ritu Bawa
Publication Date: 06-05-2015

Authors

Author(s):  S. Pranesh, Ritu Bawa

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Volume. 4 - Issue. 05 , May - 2015

e-ISSN:   2278-0181

 DOI:  http://dx.doi.org/10.17577/IJERTV4IS050063

Abstract

In the present problem the effects of vertical magnetic field along with internal heat generation on the onset of Rayleigh-Bénard convection in a conducting layer of nanofluid, which is heated from below is investigated. The model that is employed for the study incorporates the effects of Brownian motion and thermophoresis as the important slip mechanism in the absence of turbulent eddies. Linear theory based on normal mode technique has been used. The eigen value of the problem is solved for different velocity boundary conditions and for isothermal temperature condition using Galerkin technique. The results obtained during the analysis have been presented graphically. It is found that magnetic field stabilizes and internal heat generation destabilizes the system.

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