Forced Convection of a Confined Ferrofluid Jet Flow in a Channel Under the Influence of Magnetic Sources

7 Pages Posted: 22 Apr 2019 Last revised: 31 May 2019

See all articles by Walid Nessab

Walid Nessab

University of Science and Technology Houari Boumedienne

Brahim Fersadou

University of Science and Technology Houari Boumedienne

Henda Kahalerras

University of Science and Technology Houari Boumedienne

Date Written: April 19, 2019

Abstract

This work presents a numerical study of forced convection for a ferrofluid confined jet (water - Fe3O4) in a channel under the influence of six magnetic sources consisting of electrical conductor wires and arranged in a staggered manner outside the channel. The Buongiorno model is used to describe the flow of the ferrofluid in order to take into account the Brownian motion and thermophoresis effect. The governing equations and the associated boundary conditions are numerically solved using the finite volume method with the SIMPLE algorithm. The effects of the sources intensity expressed by the Hartmann number (Ha) and the opening ratio (R) characterizing the jet height at the inlet, on the flow structure and the heat transfer characteristics are analyzed. The results show that a low opening ratio and magnetic sources of high magnitude are the parameters of increasing the heat transfer rate. Also, it appears that at high Hartmann numbers, the Nusselt numbers on the lower Numi and upper walls Nums become insensitive to the variations of the opening ratio.

Keywords: Forced Convection, Confined Jet, Ferrofluid, Magnetic Sources

Suggested Citation

Nessab, Walid and Fersadou, Brahim and Kahalerras, Henda, Forced Convection of a Confined Ferrofluid Jet Flow in a Channel Under the Influence of Magnetic Sources (April 19, 2019). 2nd National Conference on Computational Fluid Dynamics & Technology 2018 (CFD & Tech 2018). Available at SSRN: https://ssrn.com/abstract=3374266 or http://dx.doi.org/10.2139/ssrn.3374266

Walid Nessab (Contact Author)

University of Science and Technology Houari Boumedienne ( email )

El Alia Bab Ezzouar
Algiers
Algeria

Brahim Fersadou

University of Science and Technology Houari Boumedienne ( email )

El Alia Bab Ezzouar
Algiers
Algeria

Henda Kahalerras

University of Science and Technology Houari Boumedienne ( email )

El Alia Bab Ezzouar
Algiers
Algeria

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