Unsteady Natural Convection with Temperature-Dependent Viscosity in a Square Cavity Filled with a Porous Medium

Unsteady Natural Convection with Temperature-Dependent Viscosity in a Square Cavity Filled with a Porous Medium

Dades bibliogràfiques
Parent link:Transport in Porous Media
Vol. 110, iss. 1.— 2016.— [P. 113-126]
Autor principal: Astanina M. S.
Autor corporatiu: Национальный исследовательский Томский политехнический университет Энергетический институт Кафедра атомных и тепловых электростанций
Altres autors: Sheremet M. A. Mikhail Aleksandrovich, Umavathi J. C.
Sumari:Title screen
A numerical investigation is implemented on the unsteady natural convection with a temperature-dependent viscosity inside a square porous cavity. The vertical walls of the cavity are kept at constant but different temperatures, while the horizontal walls are adiabatic. The mathematical model formulated in dimensionless stream function, vorticity and temperature variables is solved using implicit finite difference schemes of the second order. The governing parameters are the Rayleigh number, Darcy number, viscosity variation parameter and dimensionless time. The effects of these parameters on the average Nusselt number along the hot wall as well as on the streamlines and isotherms are analyzed. The results show an intensification of convective flow and heat transfer with an increase in the viscosity variation parameter for the porous media, while in the case of pure fluid, the effect is opposite.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:anglès
Publicat: 2016
Matèries:
электронный ресурс
труды учёных ТПУ
Accés en línia:http://dx.doi.org/10.1007/s11242-015-0558-x
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647378

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