Abstract
Peculiarities of the interaction of magnetic fluid drops with a rotating magnetic field caused by the micro-rotations of micro-aggregates of colloidal particles were investigated. Two frequency modes of drop rotations are considered which are characterized by the nature of rotation. A mathematical model of non-deformed drops has been developed which considers the micro-rotations of magnetized aggregates in the drop. Features of the falling magnetic fluid spherical drop with magnetized aggregates in a liquid medium exposed to a rotating magnetic field were studied as well as the rotation of a flat (disc-shaped) drop of such fluid floating on the water surface. The behavior of the disc-shaped drop was numerically modelled for the basic mode of rotation, which has revealed good qualitative agreement of numerical and experimental results.
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