Non-spherical Dynamics of Gas Bubbles in Soft Matter


The non-spherical dynamics of gas bubbles in soft matter are analytically investigated. We develop a model using Cauchy’s equation of motion in conjunction with a Kelvin-Voigt viscoelastic model, where it is assumed that the soft matter behaves in an irrotational fashion. The model is solved numerically and validated against experiments of non-spherical bubble oscillations in gelatin. The natural frequency of each non-spherical mode is obtained from the model, which is used to predict the unstable mode due to parametric resonance. Furthermore, we investigate the non-spherical bubble dynamics under ultrasound irradiation and examine viscoelastic effects on the time evolution of non-spherical mode amplitudes. Viscosity stabilizes non-spherical oscillations, while elasticity increases the natural frequency, which also changes the unstable mode.

Physical Model
Results and Discussion
Full text of this content:

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In