Rebounds of deformed cavitation bubbles

Abstract

Presented here are experiments clarifying how the deformation of cavitation bubbles affects their rebound. Rebound bubbles carry the remaining energy of a bubble following its initial collapse, which dissipates energy mainly through shock waves, jets, and heat. The rebound bubble undergoes its own collapse, generating such violent events anew, which can be even more damaging or effective than at first bubble collapse. However, modeling rebound bubbles is an ongoing challenge because of the lack of knowledge on the exact factors affecting their formation. Here we use single-laser-induced cavitation bubbles and deform them by variable gravity or by a neighboring free surface to quantify the effect of bubble deformation on the rebound bubbles. Within a wide range of deformations, the energy of the rebound bubble follows a logarithmic increase with the bubble's initial dipole deformation, regardless of the origin of this deformation.

References in corpus (8)

• Scaling laws for jets of single cavitation bubbles
• Shock waves from non-spherical cavitation bubbles
• Cavitation Bubble Dynamics inside Liquid Drops in Microgravity
• Shock Wave Emissions of a Sonoluminescing Bubble
• A Universal Scaling Law for Jets of Collapsing Bubbles
• The Quest for the Most Spherical Bubble
• Energy partition at the collapse of spherical cavitation bubbles
• Luminescence from cavitation bubbles deformed in uniform pressure gradients

Cited by in corpus (5)

• Modelling large scale airgun-bubble dynamics with highly non-spherical features
• Effect of stand-off distance and spatial resolution on the pressure impact of near-wall vapor bubble collapses
• On the dynamics of a collapsing bubble in contact with a rigid wall
• Bubble collapse near porous plates
• Numerical investigation of non-condensable gas effect on vapor bubble collapse