Laser-induced vapour bubble as a means for crystal nucleation in supersaturated solutions - Formulation of a numerical framework
Journal article, 2019

We use in this work numerical simulations to investigate the evolution of a laser-induced vapour bubble with a special focus on the resolution of a thin layer of liquid around the bubble. The application of interest is laser-induced crystallization, where the bubble acts as a nucleation site for crystals. Experimental results indicate the extreme dynamics of these bubbles where the interface during the period of 200 us, from nucleation to collapse, reaches a maximum radius of roughly 700 ┬Ám and attains a velocity of well above 20 m/s. To fully resolve the dynamics of the bubble, the volume of fluid (VOF) numerical framework is used. Inertia, thermal effects, and phase-change phenomena are identified as the governing phenomena for the bubble dynamics. We develop and implement into our numerical framework an interface phase-change model that takes into account both evaporation and condensation. The performed simulations produce qualitatively promising results that are in fair agreement with both experiments and analytical solutions from the literature. The reasons behind the observed differences are discussed and suggestions are made for future improvements of the framework.

laser-induced cavitation

volume of fluid

vapour bubble

crystal nucleation

Author

Niklas Hidman

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Gaetano Sardina

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Dario Maggiolo

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Henrik Ström

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Srdjan Sasic

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Experimental and Computational Multiphase Flow

2661-8869 (ISSN) 2661-8877 (eISSN)

Vol. 1 4

Understanding and modelling bubble-induced turbulence

Swedish Research Council (VR), 2018-01-01 -- 2021-12-31.

Driving Forces

Sustainable development

Areas of Advance

Production

Roots

Basic sciences

Subject Categories

Other Chemical Engineering

Fluid Mechanics and Acoustics

DOI

10.1007/s42757-019-0024-z

More information

Latest update

7/2/2019 1