Forced Convection of Fe 3 O 4 -Water Nanofluid in a Bifurcating Channel under the Effect of Variable Magnetic Field

Fatih Selimefendigil, Hakan F. Oztop, Mikhail A. Sheremet and Nidal Abu-Hamdeh
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Fatih Selimefendigil: Department of Mechanical Engineering, Celal Bayar University, Manisa 45140, Turkey
Hakan F. Oztop: Department of Mechanical Engineering, Firat University, Elazig 23119, Turkey
Mikhail A. Sheremet: Laboratory on Convective Heat and Mass Transfer, Tomsk State University, 634050 Tomsk, Russia
Nidal Abu-Hamdeh: Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, P.O. Box 40844, Jeddah 21511, Saudi Arabia

Energies, 2019, vol. 12, issue 4, 1-16

Abstract: In this study, forced convection of Fe 3 O 4 –water nanofluid in a bifurcating channel was numerically studied under the influence of variable magnetic. Galerkin residual finite element method was used for numerical simulations. Effects of various values of Reynolds number (between 100 and 500), Hartmann number (between 0 and 3), and solid nanoparticle volume fraction (between 0% and 4%) on the convective heat transfer characteristics were analyzed. It was observed that location and size of the re-circulation zones established in the walls of the bifurcating channel strongly influenced by the variable magnetic field and Reynolds number. Average Nusselt number versus Hartmann number showed different characteristics for hot walls of the vertical and horizontal branching channels. The average Nusselt number enhancements were in the range of 12–15% and 9–12% for hot walls of the branching channel in the absence and presence of magnetic field (at Hartmann number of 3).

Keywords: variable magnetic field; MHD flow; finite element method; Fe 3 O 4 –water (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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