Spherical magnetizable body partially immersed in a magnetic fluid in a uniform magnetic field

Пелевина, Д.А.; Sharova, O.A.; Меркулов, Д.И.; Турков, В.А.; Налетова, В.А.

doi:10.1016/j.jmmm.2019.165751

Cited by 10 publications

(1 citation statement)

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“…Liquid-dispersed nanostructured systems (ferrocolloids or magnetic fluids) have unique electrical and electro-optical properties, which are of scientific interest from the point of view of studying the interaction of dispersed particles with external fields and with each other [1][2][3][4][5]. A ferrocolloid is a colloidal system of ferromagnetic particles (magnetite) with a size of ~10 nm in a carrier liquid (kerosene).…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study of Forced Synchronization of Self-Oscillations in Liquid Ferrocolloid Membranes

2022

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A ferrocolloid is a suspension of nanometer-sized ferromagnetic particles (magnetite) in a carrier liquid (kerosene). A unique feature of a ferrocolloid is the fact that layers consisting of densely packed particles are formed near the electrode surface under the influence of an external electric field. Each layer is a liquid membrane, and its formation significantly affects the various properties of the system. For example, the development of a unique phenomenon in a ferrocolloid is self-organization (self-oscillations and autowaves). The applied external periodic force leads to a change (capture) of the frequency of the autowave process-forced synchronization of autowaves. The experimentally obtained synchronization was investigated by the method of electrically controlled interference. After multiple experiments and theoretical studies, a physical mechanism for the synchronization of the autowave process in a cell with a ferrocolloid was proposed for the first time. A mathematical model of forced synchronization of autowaves, which is described by a system of nonlinear differential equations, was proposed for the first time as well. Adding an external periodic force into the model led to a change in the frequency of autowaves; synchronization by an external force was confirmed by computational experiments.

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Section: Introductionmentioning

confidence: 99%