Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Journal of Porous Media
Fator do impacto: 1.49 FI de cinco anos: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

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

Volumes:
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.v16.i11.10
pages 967-977

MIXED CONVECTION ON A PERMEABLE STRETCHING CYLINDER WITH PRESCRIBED SURFACE HEAT FLUX IN POROUS MEDIUM WITH HEAT GENERATION OR ABSORPTION

Sadegh Khalili
Binghamton University
Arezoo Khalili
Department of Mechanical Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran
Sara Kafashian
Department of Energy System Engineering, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran
Abbas Abbassi
Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Ave., P.O. Box 15875-4413, Tehran, Iran

RESUMO

The steady mixed convection boundary layer flow due to a permeable stretching cylinder with prescribed heat flux in porous medium with heat generation/absorption is investigated numerically. The governing system of partial differential equations is converted into a system of ordinary differential equations using similarity transformation, which is then solved numerically by the fourth-order Runge-Kutta method with shooting technique. The influence of the governing parameters, namely the permeability, heat generation/absorption, suction/injection, Prandtl number, and Reynolds number on the flow and heat transfer characteristics are analyzed and discussed. It is found that the skin-friction coefficient and the Nusselt number at the surface increase as the Prandtl number increases. The same behavior is observed for the wall permeability parameter while the opposite behavior is observed for the heat generation parameter and Reynolds number of the cylinder. On the other hand, in the case of opposing flow with an increase in the mixed convection parameter velocity decreases whereas the temperature increases but the opposite behavior is observed in the case of assisting flow.


Articles with similar content:

RADIATION EFFECT ON MHD FLOW OF A TANGENT HYPERBOLIC NANOFLUID OVER AN INCLINED EXPONENTIALLY STRETCHING SHEET
International Journal of Fluid Mechanics Research, Vol.46, 2019, issue 3
Nampelly Saidulu, A. Venakata Lakshmi, T. Gangaiah
LIE GROUP ANALYSIS OF RADIATION NATURAL CONVECTION FLOW OVER AN INCLINED SURFACE IN A POROUS MEDIUM WITH INTERNAL HEAT GENERATION
Journal of Porous Media, Vol.15, 2012, issue 12
Sivanandam Sivasankaran, M. Bhuvaneswari, Youn J. Kim
STEADY DOUBLE-DIFFUSIVE MIXED CONVECTION BOUNDARY LAYER FLOW PAST A VERTICAL FLAT PLATE EMBEDDED IN A POROUS MEDIUM FILLED BY A NANOFLUID USING BUONGIORNO'S MODEL
Journal of Porous Media, Vol.19, 2016, issue 4
Ioan Pop, Anuar Ishak, Mohd Hafizi Mat Yasin
THERMAL DIFFUSION EFFECTS ON UNSTEADY MAGNETOHYDRODYNAMIC BOUNDARY LAYER SLIP FLOW PAST A VERTICAL PERMEABLE PLATE
Special Topics & Reviews in Porous Media: An International Journal, Vol.7, 2016, issue 1
B. Rushi Kumar, S. Vijaya Kumar Varma, M. C Raju, C. Veeresh
NONSIMILAR SOLUTION OF UNSTEADY MIXED CONVECTION FLOW NEAR THE STAGNATION POINT OF A HEATED VERTICAL PLATE IN A POROUS MEDIUM SATURATED WITH A NANOFLUID
Journal of Porous Media, Vol.21, 2018, issue 4
Abdullah A. Abdullah, Fouad S. Ibrahim, Ali J. Chamkha