Abstract
The evolution of the radius of a spherical cavitation bubble in an incompressible non-Newtonian liquid under the action of an external acoustic field is investigated. Non-Newtonian liquids having relaxation properties and also pseudoplastic and dilatant liquids with powerlaw equation of state are studied. The equations for the oscillation of the gas bubble are derived, the stability of its radial oscillation and its spherical form are investigated, and formulas are given for the characteristic frequency of oscillations of the cavitation hollow in a relaxing liquid. The equations are integrated numerically. It is shown that in a relaxing non-Newtonian liquid the viscosity may lead to the instability of the radial oscillations and the spherical form of the bubble. The results obtained here are compared with the behavior of a gas bubble in a Newtonian liquid.
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 129–135, March–April 1974.
The authors are thankful to I. R. Shreiber for assistance in the work.
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Gasenko, V.G., Sobolev, V.V. Oscillations of a gas bubble in a non-Newtonian liquid under the action of an acoustic field. Fluid Dyn 9, 270–274 (1974). https://doi.org/10.1007/BF01092661
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DOI: https://doi.org/10.1007/BF01092661