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Investigation of Oriented Magnetic Field Effects on Entropy Generation in an Inclined Channel Filled with Ferrofluids

Ecole Nationale de l’Aviation Civile, Toulouse 31400, France
Faculty of Electrics & Electronics, Istanbul Technical University, Istanbul 34469, Turkey
Faculty of Aeronautics & Astronautics, Istanbul Technical University, Istanbul 34469, Turkey
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, Copenhagen, Denmark, 25–27 July 2014.
Entropy 2017, 19(7), 377;
Received: 13 June 2017 / Revised: 10 July 2017 / Accepted: 18 July 2017 / Published: 23 July 2017
(This article belongs to the Special Issue Entropy Generation in Nanofluid Flows)
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Dispersion of super-paramagnetic nanoparticles in nonmagnetic carrier fluids, known as ferrofluids, offers the advantages of tunable thermo-physical properties and eliminate the need for moving parts to induce flow. This study investigates ferrofluid flow characteristics in an inclined channel under inclined magnetic field and constant pressure gradient. The ferrofluid considered in this work is comprised of Cu particles as the nanoparticles and water as the base fluid. The governing differential equations including viscous dissipation are non-dimensionalised and discretized with Generalized Differential Quadrature Method. The resulting algebraic set of equations are solved via Newton-Raphson Method. The work done here contributes to the literature by searching the effects of magnetic field angle and channel inclination separately on the entropy generation of the ferrofluid filled inclined channel system in order to achieve best design parameter values so called entropy generation minimization is implemented. Furthermore, the effect of magnetic field, inclination angle of the channel and volume fraction of nanoparticles on velocity and temperature profiles are examined and represented by figures to give a thorough understanding of the system behavior. View Full-Text
Keywords: ferrofluid; inclined channel; magnetic field; Generalized Differential Quadrature Method ferrofluid; inclined channel; magnetic field; Generalized Differential Quadrature Method

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Baskaya, E.; Komurgoz, G.; Ozkol, I. Investigation of Oriented Magnetic Field Effects on Entropy Generation in an Inclined Channel Filled with Ferrofluids. Entropy 2017, 19, 377.

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