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Translational motion of a bubble of equilibrium radius 100 μm interacting with a second bubble of radius 100 μm (dashed line) or rigid particles of radius 200 μm (solid lines) and density ratios ρpart∕ρliq=0.5, 1, and 2 excited by a sinusoidal plane wave source of amplitude 1 kPa located at −10 cm along the x axis. Initial separation distance 500 μm. (a) Bubble position. (b) Particle position. (c) Separation distance between bubble and particle.
