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Journal of Porous Media
Fator do impacto: 1.752 FI de cinco anos: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

Volumes:
Volume 23, 2020 Volume 22, 2019 Volume 21, 2018 Volume 20, 2017 Volume 19, 2016 Volume 18, 2015 Volume 17, 2014 Volume 16, 2013 Volume 15, 2012 Volume 14, 2011 Volume 13, 2010 Volume 12, 2009 Volume 11, 2008 Volume 10, 2007 Volume 9, 2006 Volume 8, 2005 Volume 7, 2004 Volume 6, 2003 Volume 5, 2002 Volume 4, 2001 Volume 3, 2000 Volume 2, 1999 Volume 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v11.i6.70
pages 603-615

Three-Dimensional Free Convection Flow of a Viscous Fluid through a Nonhomogeneous Porous Medium

RESUMO

The present study deals with the theoretical analysis of time-dependent periodic variation in suction velocity and permeability on free convection unsteady flow of a viscous incompressible fluid past an infinite vertical porous plate. The flow is three-dimensional because the variation of permeability and suction velocity is transverse to the potential flow. Considering the free stream velocity to be uniform, series solutions are obtained for the flow field and temperature field. Expressions for the skin friction and heat transfer are also derived. The effects of all parameters on velocity, temperature, skin friction, and heat transfer rate (Nusselt number) are presented graphically and in tabular form followed by a detailed discussion. The model finds applications in nuclear heat transfer processes, metallurgy, aerospace/naval propulsion, and energy systems.


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