Dynamic Elasticity of a Magnetic Fluid Column in a Strong Magnetic Field


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Abstract

The elastomagnetic parameters of a magnetic fluid kept by magnetic levitation in a tube placed horizontally in a strong magnetic field are measured, including the oscillation frequency, the ponderomotive and dynamic elasticity coefficients, the magnetization curve, and the magnetic field strength and its gradient. Results of calculations for the model of ponderomotive elasticity for the examined sample of the magnetic fluid corrected for the resistance of the moving viscous fluid are in good agreement with the experimental magnetization curve. The described method is of interest for a study of magnetophoresis, nanoparticle aggregations, viscosity, and their time dependences in magnetic colloids.

About the authors

V. M. Polunin

South-West State University

Author for correspondence.
Email: polunin-vm1@yandex.ru
Russian Federation, Kursk

P. A. Ryapolov

South-West State University

Email: polunin-vm1@yandex.ru
Russian Federation, Kursk

E. V. Shel’deshova

South-West State University

Email: polunin-vm1@yandex.ru
Russian Federation, Kursk

A. E. Kuz’ko

South-West State University

Email: polunin-vm1@yandex.ru
Russian Federation, Kursk

I. M. Aref’ev

Ivanovo State University of Power Engineering named after V. I. Lenin

Email: polunin-vm1@yandex.ru
Russian Federation, Ivanovo

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