Proceedings of the 10th International Symposium on Cavitation (CAV2018) 2018
DOI: 10.1115/1.861851_ch151
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Numerical Simulation of the Bubble Cloud Dynamics in an Ultrasound Field

Abstract: We use a coupled Eulerian-Lagrangian method to simulate the dynamics of a spherical bubble cloud with various void fractions excited by high-amplitude ultrasound pulses. We consider two cases: a single cycle of a sinusoidal waveform whose wavelength is large compared to the cloud diameter, and multiple cycles with a short wavelength. For the long wavelength, bubble cloud dynamics are nearly spherically symmetric. Bubbles near the periphery grow more than the those close to the center, and the collapse of bubbl… Show more

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