Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Heat Transfer Research
Facteur d'impact: 0.404 Facteur d'impact sur 5 ans: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

Volumes:
Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018025786
pages 361-380

THE EFFECT OF MAGNETIC FIELD ON COUNTERFLOWS OF NANOFLUIDS IN ADJACENT MICROCHANNELS SEPARATED BY A THIN PLATE

Y. Yalameh Ali Abadi
Mechanical Engineering, Shahrekord University, Shahrekord, Iran
Afrasiab Raisi
Engineering Faculty, Shahrekord University, Shahrekord, PO Box 115, Iran
Behzad Ghasemi
Engineering Faculty, Shahrekord University, Shahrekord, PO Box 115, Iran

RÉSUMÉ

This study examines forced convection heat transfer between two hot and cold nanofluid laminar counterflows in a pair of adjacent horizontal microchannels. The hot alumina-water nanofluid enters the upper microchannel from the left and at same time, the cold CuO-water nanofluid enters the lower microchannel from the right. Heat exchange takes place between the hot and cold flows along the microchannels through the intermediate plate. The governing equations became algebraic using control volume method, and they are simultaneously solved using the SIMPLE algorithm. The results show that an increase in Reynolds number results in a rise in the heat transfer rate between the two flows in the microchannels. The Lorentz force generated by the magnetic field reduces the velocity of the flows in the core of the microchannels. Due to the constant mass flow rate, a velocity decrease at the center of the microchannels results in an increase in the velocity near the walls. Therefore, the heat exchange rate between the hot and cold flows is enhanced with increasing Hartmann number, especially at high Reynolds numbers. Also, due to the better thermal conductivity of nanofluids, an increase in the volume fraction of the nanoparticles leads to an increase in the heat transfer rate.


Articles with similar content:

LARGE EDDY SIMULATION OF FINE PARTICLE DEPOSITION IN THERMALLY STRATIFIED TURBULENT CHANNEL FLOW
TSFP DIGITAL LIBRARY ONLINE, Vol.7, 2011, issue
Lin-Feng Chen, Yimin Tang, Yu-Hong Dong
MIXED CONVECTIVE RAREFIED FLOWS WITH SYMMETRIC AND ASYMMETRIC HEATED WALLS
Computational Thermal Sciences: An International Journal, Vol.5, 2013, issue 4
Hamid Niazmand, Behnam Rahimi
NATURAL CONVECTION HEAT TRANSFER IN A SQUARE CAVITY CONTAINING A NANOFLUID WITH A BAFFLE UNDER A MAGNETIC FIELD
Heat Transfer Research, Vol.45, 2014, issue 8
Alireza Arab Solghar, M. Davoudian
COMBINED BUOYANCY EFFECTS OF THERMAL AND MASS DIFFUSION ON LAMINAR CONVECTION IN A VERTICAL ISOTHERMAL CHANNEL
Computational Thermal Sciences: An International Journal, Vol.2, 2010, issue 2
Othmane Oulaid, Brahim Benhamou, Nicolas Galanis
EFFECT OF PERIODICALLY ALTERNATING WALL TEMPERATURE ON NATURAL CONVECTION HEAT TRANSFER ENHANCEMENT IN A SQUARE CAVITY FILLED WITH Cu-WATER NANOFLUIDS
Heat Transfer Research, Vol.47, 2016, issue 9
Xi Meng, Enshen Long, Jun Wang, Yan Wang