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arXiv · 1004.4151

Magnetic traveling-stripe-forcing: enhanced transport in the advent of the Rosensweig instability

Thomas Friedrich·Ingo Rehberg·Reinhard Richter
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Abstract

A new kind of contactless pumping mechanism is realized in a layer of ferrofluid via a spatio-temporally modulated magnetic field. The resulting pressure gradient leads to a liquid ramp, which is measured by means of X-rays. The transport mechanism works best if a resonance of the surface waves with the driving is achieved. The behavior can be understood semi-quantitatively by considering the magnetically influenced dispersion relation of the fluid.

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Thomas Friedrich, Ingo Rehberg, Reinhard Richter. 2010-04-23. Magnetic traveling-stripe-forcing: enhanced transport in the advent of the Rosensweig instability. https://doi.org/10.1103/physreve.82.036304

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