Abstract
The occurrence of resonance in an acoustic system as a result of a change of the dispersion of a gas suspension filling a resonator with fixed external excitation parameters was studied. The dynamics of the medium is described by a system of equations of motion of a multi-velocity multi temperature continuum taking into account pulse and energy exchange between the carrier phase and the disperse fractions. Coagulation of different particle fractions is simulated by Smolukhovskii’s Lagrangian model, which takes into account pair collisions. Resonance occurs as a result of the resonance frequency of the system approaching a fixed external excitation frequency as a result of a change in the dispersion of the gas suspension during coagulation initiated by the addition of a small amount of the large particle fraction to the finely dispersed gas suspension. As a result of calculations, an estimate for the time of the change in dispersion of the system and the generation of resonance oscillations were obtained.
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Original Russian Text © A.L. Tukmakov, V.G. Tonkonog, N.A. Tukmakova, 2017, published in Akusticheskii Zhurnal, 2017, Vol. 63, No. 5, pp. 566–572.
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Tukmakov, A.L., Tonkonog, V.G. & Tukmakova, N.A. Nonlinear resonance in an acoustic system with a coagulating gas suspension. Acoust. Phys. 63, 610–616 (2017). https://doi.org/10.1134/S106377101705013X
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DOI: https://doi.org/10.1134/S106377101705013X