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Published on: May 9, 2021
Influence of liquid density on the parametric shape instability of sonoluminescence bubbles in water and sulfuric
1Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, México DF, México. fgodinezr@gmail.com
Abstract:
Parametric shape instability of sonoluminescing argon bubbles in water and aqueous H(2)SO(4) was numerically analyzed considering gas and liquid density variations. The employed model couples Gilmore, Tait (liquid) and van der Waals (gas) equations to simulate radial dynamics and density changes, respectively. Shape stability-instability zones in the P(a)-R(0) space resulted from a linear stability analysis. For the argon-water and argon-water-acid systems, numerical results indicate a rapid rise in both gas and liquid densities during final stages of bubble implosion which result in a stabilizing effect on the parametric instability.
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