Losses at sound propagation in thin-walled tube, filled by viscoelastic liquid with smallbubbles are investigated. The goal of the study is comparative analysis of dissipationgoverned by liquid interaction with the tube wall in the wave and bubbles interaction with theliquid. Modeling description of the process is based on Kirchhoff-Love approximation fortube wall dynamics; interaction of the flowing viscoelastic liquid with elastic wall isdescribed within quasi-one-dimensional approach; dynamics of the liquid-gas mixture in thewave is treated on the basis of quasi-homogeneous model. Both heat and rheological lossesare included in the phase interaction description at the liquid-gas interface. The resultingdispersion equation for the waveguide with viscoelastic liquid-gas mixture is studiednumerically. The results illustrate the influence of liquid rheology and gas-liquid mixtureparameters on the sound attenuation.
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