Distribution of solid particles in the acoustic field of resonance tube in different regimes of oscillations excitation
A.L. Tukmakov
Institute of Mechanics and Machine Building,
Kazan Scientific Center of RAS, Kazan, Russia
Pages: 207-215
Abstract
The process of the drift of solid spherical particles in a closed pipe is investigated on the basis of a numerical solution of the system of equations for the motion of a viscous, compressible, and heat-conducting gas. The particles motion arises under the action of the gas column oscillations, which are excited by a flat piston moving in accordance with a harmonic law. The particles distributions typical of the first and second linear and the first nonlinear resonances are presented along the pipe axis, which are obtained under the assumption on the Stokes character of the gas flow around a particle. The drift mean velocity is shown to be determined by the asymmetry of the wave shape, and it increases near the resonances, where the oscillations are followed by the formation of shock waves.
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