• Jul 12, 2018 News![CFP] 2019 the annual meeting of IJMMM Editorial Board, ECMMM 2019, will be held in Amsterdam, Netherlands during February 16-18, 2019.   [Click]
  • Feb 26, 2018 News!'Writing Tips' shared by Prof. Ian McAndrew!   [Click]
  • Oct 26, 2018 News!Papers published in Vol.6, No.3-No.4 have all received dois from Crossref.
General Information
    • ISSN: 1793-8198
    • Frequency: Quarterly
    • DOI: 10.18178/IJMMM
    • Editor-in-Chief: Prof. K. M. Gupta, Prof. Ian McAndrew
    • Executive Editor: Ms. Cherry L. Chen
    • Abstracting/Indexing: EI (INSPEC, IET), Chemical Abstracts Services (CAS),  ProQuest, Crossref, Ulrich's Periodicals Directory,  etc.
    • E-mail ijmmm@ejournal.net
Prof. Ian McAndrew
Capitol Technology University, USA
It is my honor to be the editor-in-chief of IJMMM. I will do my best to help develop this journal better.

IJMMM 2017 Vol.5(2): 87-91 ISSN: 1793-8198
DOI: 10.18178/ijmmm.2017.5.2.296

Prediction of Nanofluid Forced and Mixed Convection Heat Transfer through an Annular Pipe

F. Benkhedda, T. Boufendi, and S. Touahri
Abstract—This work is a numerical simulation of the 3D forced and mixed convection heat transfer of Al2O3-water nanofluid flow through an annular pipe. The interest of this research is in enhancing heat transfer by using a nanofluid instead a usual fluid without solid particles. The external pipe is uniformly heated while the inner cylinder is insulated. Based on the single approach, the conservation equations are solved by a second order precision finite volume method. Extensive results are obtained for different values of the Reynolds (500-2000) and Grashof (0, 104, 105) numbers and the nanoparticle concentration (1, 4, 8%). Our results show that the mixed convection Nusselt number becomes more superior to that of the forced convection when the Grashof number is increased. Furthermore, when the Reynolds number is fixed, the temperatures undergo a circumstantial variation under the influence of the Grashof number with significant azimuthally variation. Also, for the same concentration of nanoparticles, temperatures within the nanofluid are strongly influenced by the Reynolds number. They decrease with increasing Reynolds number.

Index Terms—Nanofluid, convection heat transfer, annular duct, numerical prediction.

F. Benkhedda is with the Faculty of Sciences, University of Boumerdes, Algeria (e-mail: fbenkhedda@gmail.com).
T. Boufendi and S. Touahri are with the Energy Physics Laboratory, Faculty of Sciences, Brothers Mentouri University, Constantine, Algeria USA (e-mail: boufendit@yahoo.fr, sofianetouahri04@yahoo.fr).


Cite: F. Benkhedda, T. Boufendi, and S. Touahri, "Prediction of Nanofluid Forced and Mixed Convection Heat Transfer through an Annular Pipe," International Journal of Materials, Mechanics and Manufacturing vol. 5, no. 2, pp. 87-91, 2017.

Copyright © 2008-2018. International Journal of Materials, Mechanics and Manufacturing. All rights reserved.
E-mail: ijmmm@ejournal.net