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Experimental Investigations on the Effect of Axial Homogenous Magnetic Fields on Propagating Vortex Flow in the Taylor–Couette System

Chair of Magnetofluiddynamics, Measuring and Automation Technology, Dresden University of Technology, 01062 Dresden, Germany
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Materials 2019, 12(24), 4027; https://doi.org/10.3390/ma12244027
Received: 11 November 2019 / Revised: 28 November 2019 / Accepted: 29 November 2019 / Published: 4 December 2019
(This article belongs to the Special Issue Magnetic Fluids)
Experimental investigations of propagating vortex flow states (pV states) in a short Taylor–Couette system with asymmetric boundary conditions are presented. The flow state was established in a ferrofluid showing no magneto-viscous effect and was exposed to axial magnetic fields. It was found that the magnetic field led to a change in the spatial and temporal behavior of the pV state, indicating complex interactions between the flow field and magnetic field. A stepwise applied axial magnetic field destabilized the pV state, leading to an intermittent flow state. Gradually increasing the axial magnetic fields changed the temporal behavior of the regime. Up to magnetic field strengths of 20 kA/m, the orbital frequency, as a measure for the temporal periodicity, was increased with field strength. View Full-Text
Keywords: ferrofluid; Taylor–Couette flow; asymmetric boundary conditions; propagating vortices; magnetic fields ferrofluid; Taylor–Couette flow; asymmetric boundary conditions; propagating vortices; magnetic fields
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MDPI and ACS Style

Ilzig, T.; Stöckel, K.; Odenbach, S. Experimental Investigations on the Effect of Axial Homogenous Magnetic Fields on Propagating Vortex Flow in the Taylor–Couette System. Materials 2019, 12, 4027.

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