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

ABSTRACT: 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.

SUBMITTER: Ilzig T

PROVIDER: S-EPMC6947023 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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

Ilzig Thomas T Stöckel Katharina K Odenbach Stefan S

Materials (Basel, Switzerland) 20191204 24

Experimental investigations of propagating vortex flow states (<i>p</i>V 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 <i>p</i>V state, indicating complex interactions between the flow field and magnetic field. A stepwise applied axia ...[more]

PMID: 31817153

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