The Effect of Interface Tension on Forced Oscillations of Elongated Microdroplet Aggregates in Magnetic Fluids

Changes in the shape of microdroplet aggregates exposed to an alternating magnetic field with fre-quency from 0.01 to 1 Hz are investigated both experimentally and using a computer simulation. Micro-droplet aggregates are spherical droplets of a highly concentrated magnetic fluid with a radius from one to several tens of microns dispersed in a liquid with a low concentration of magnetic particles. For values of interfacial tension σ > 2·10– 6 N/m small oscillations in a weak alternating field could not be obtained, but periodic forced oscillations were obtained at strong elongations. Oscillations of elongated microdroplet ag-gregates are of a periodical nonsinusoidal type with higher harmonics and subharmonics in the spectrum. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3611

Spectrum Features of Forced Oscillations of Microdroplet Aggregates in Magnetic Fluids

We have studied the discrete spectrum of the forced oscillation of microdroplet aggregates in magnetic fluid in magnetic field H(t) = H[0]sinwt with the frequency of 0,01-100 Hz

Modeling Oscillations of Magnetizable Microdrops

Developed a system of computer simulation of oscillations of magnetizable microdrops in a wide range of changing their parameters: surface tension, viscosity, magnetic permeability, density, and radius. Computational experiments of oscillations of magnetizable drops in an alternating magnetic field and the influence of various forces of nature (inertial, viscous, surface and magnetic) on the nature of the oscillations were carried out. Adequacy of the model, used as the basis for the developed system of computer simulation was shown on the basis of computational and experimental data

Spectrum Features of Forced Oscillations of Microdroplet Aggregates in Magnetic Fluids

We have studied the discrete spectrum of the forced oscillation of microdroplet aggregates in magnetic fluid in magnetic field H(t) = H[0]sinwt with the frequency of 0,01-100 Hz

Modeling Oscillations of Magnetizable Microdrops

Developed a system of computer simulation of oscillations of magnetizable microdrops in a wide range of changing their parameters: surface tension, viscosity, magnetic permeability, density, and radius. Computational experiments of oscillations of magnetizable drops in an alternating magnetic field and the influence of various forces of nature (inertial, viscous, surface and magnetic) on the nature of the oscillations were carried out. Adequacy of the model, used as the basis for the developed system of computer simulation was shown on the basis of computational and experimental data