Publication de 12 numéros par an
ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508
Indexed in
Effect of Variable Gravity Field on Thermal Instability in a Porous Medium with Inclined Temperature Gradient and Vertical Throughflow
RÉSUMÉ
The onset of convection in a horizontal fluid saturated isotropic porous layer with inclined temperature gradient and vertical throughflow, subject to a gravity field varying linearly with distance in the layer, is investigated. The resulting eigenvalue problem is solved using the Galerkin technique. It is seen that when the variable gravity parameter is positive, an increase in the vertical throughflow in the direction of the gravity vector always stabilizes the system. Further, an increase in the throughflow in the direction opposing gravity delays the onset of convection when the variable gravity parameter is negative.
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Goldstein R.J., Eckert E.R.G., Ibele W.E., Patankar S.V., Simon T.W., Kuehn T.H., Strykowski P.J., Tamma K.K., Bar-Cohen A., Heberlein J.V.R., Davidson J.H., Bischof J., Kulacki F.A., Kortshagen U., Garrick S., Srinivasan V., Heat transfer—a review of 2002 literature, International Journal of Heat and Mass Transfer, 48, 5, 2005. Crossref
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Nield Donald A., Bejan Adrian, Internal Natural Convection: Heating from the Side, in Convection in Porous Media, 2013. Crossref
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Govender Saneshan, Stability of Gravity Driven Convection in a Cylindrical Porous Layer Subjected to Vibration, Heat Transfer, Volume 1, 2006. Crossref
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Gangadharaiah Y. H., Chaya T. Y., Suma S. P., Linear and Nonlinear Gravity Field Variation on Double-Diffusive Convection in a Porous Layer, in Advances in Mechanical Engineering, 2021. Crossref