Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Journal of Porous Media
Facteur d'impact: 1.061 Facteur d'impact sur 5 ans: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 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.v19.i5.40
pages 423-439

IRREVERSIBILITY ANALYSIS OF VARIABLE THERMAL CONDUCTIVITY MHD RADIATIVE FLOW IN A POROUS CHANNEL WITH DIFFERENT NANOPARTICLES

Md. S. Alam
Department of Mathematics, Jagannath University, Dhaka-1100, Bangladesh
Md. Abdul Hakim Khan
Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh
Md. Abdul Alim
Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh

RÉSUMÉ

The entropy generation on radiative heat transfer performance in the flow of variable thermal conductivity, optically thin viscous water-based nanofluid with an external magnetic field through a porous parallel channel is investigated in the present work. Three types of nanoparticles, Cu, TiO2, and Al2O3, are used to observe their performance. The fluid temperature in the channel varies due to the asymmetric heating of the walls as well as viscous dissipation. Our approach uses the power series from the governing nonlinear differential equations for small values of the thermal conductivity variation parameter which are then analyzed by various generalizations of the Hermite- Pade approximation method. The influences of the pertinent governing flow parameters on velocity, temperature, thermal conductivity criticality conditions, and entropy generation are discussed extensively, both numerically and graphically. A stability analysis has been performed for the local rate of heat transfer, which signifies that the lower solution branch is stable and physically acceptable whereas the upper solution branch is unstable. It is interesting to note that the entropy generation of the system increases at the two porous plates as well as that the fluid friction irreversibility is dominant there.


Articles with similar content:

MHD Stagnation Point Flow and Heat Transfer over a Permeable Surface through a Porous Space
Journal of Porous Media, Vol.12, 2009, issue 2
Zaheer Abbas
NUMERICAL TREATMENT AND GLOBAL ERROR ESTIMATION OF NATURAL CONVECTIVE EFFECTS ON GLIDING MOTION OF BACTERIA ON A POWER-LAW NANOSLIME THROUGH A NON-DARCY POROUS MEDIUM
Journal of Porous Media, Vol.18, 2015, issue 11
Abeer A. Shaaban, Muneer Y. Alnour, Mohamed Abou-zeid
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
UNSTEADY MAGNETOHYDRODYNAMIC FREE CONVECTIVE DOUBLE-DIFFUSIVE VISCOELASTIC FLUID FLOW PAST AN INCLINED PERMEABLE PLATE IN THE PRESENCE OF VISCOUS DISSIPATION AND HEAT ABSORPTION
Special Topics & Reviews in Porous Media: An International Journal, Vol.6, 2015, issue 4
S. Vijaya Kumar Varma, M. Umamaheswar, M. C Raju, Ali J. Chamkha
NUMERICAL STUDY OF MOMENTUM AND HEAT TRANSFER OF MHD CARREAU NANOFLUID OVER AN EXPONENTIALLY STRETCHED PLATE WITH INTERNAL HEAT SOURCE/SINK AND RADIATION
Heat Transfer Research, Vol.50, 2019, issue 7
Rahmat Ellahi, Hajar Farhan Ismael, Tehseen Abbas, Majeed Ahmad Yousif