Phys. Rev. E 78, 025303(R) (2008) [4 pages]Chemical oscillations of air-seeded bubbles in water driven by ultrasound
Chemical oscillations are shown to be responsible for very low frequency modulations of a bubble oscillating nonlinearly in a high intensity ultrasound field. In the parameter space of incomplete dissociation near the onset of sonoluminescence a small bubble is shown to grow on a long time scale by the intake of dissolved air. Bubble collapses get hotter and more dense, noninert gases are dissociated and removed, and a small growing argon bubble is left behind continuing the circle. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.78.025303
DOI:
10.1103/PhysRevE.78.025303
PACS:
47.55.dd, 78.60.Mq, 82.40.Bj
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