Unsteady MHD natural convection flow of heat generating/absorbing fluid near a vertical plate with ramped temperature and motion

Autor: Khadijah K. Lawal, Haruna M. Jibril
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Taibah University for Science, Vol 13, Iss 1, Pp 433-439 (2019)
Druh dokumentu: article
ISSN: 1658-3655
16583655
DOI: 10.1080/16583655.2019.1589031
Popis: This work investigates the unsteady natural convection flow of a viscous, incompressible and electrically conducting fluid near an infinite vertical plate with ramped temperature and ramped motion. A unified closed form solution is obtained for the velocity field and skin friction coefficient corresponding to the case when the magnetic field fixed relative to the fluid or the moving boundary. It is assumed that the boundary plate has a ramped temperature profile and ramped motion subject to a uniform transverse magnetic field under the supposition of negligible induced magnetic field. Exact solutions of energy and momentum equations are obtained using the Laplace transform techniques. Graphical representations are attained for different values of the Prandtl number, magnetic field and heat sink parameter. Results show that wall ramped temperature and ramped motion tend to decrease fluid temperature, velocity, Nusselt number and skin friction.
Databáze: Directory of Open Access Journals
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