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Related Experiment Video

Updated: Apr 28, 2026

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

Published on: January 10, 2017

Numerical Simulation of Bubble Cluster Induced Flow by Three-Dimensional Vortex-in-Cell Method.

Bin Chen¹, Zhiwei Wang², Tomomi Uchiyama³

¹State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University , Xi'an 710049 , China

Journal of Fluids Engineering

|June 5, 2014

Summary

Air bubble clusters rise faster in water due to aggregation, with closer clusters exhibiting stronger vortex structures and higher velocities. This study validates a novel numerical method for simulating bubble plume dynamics.

Keywords:

aggregation effect bubble cluster gas-liquid two-phase flow two-way coupling vortex-in-cell method vortical flow

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Preparation of Free-Surface Hyperbolic Water Vortices

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Published on: July 28, 2023

Area of Science:

Fluid Dynamics
Multiphase Flow
Computational Science

Background:

Understanding air bubble cluster behavior in liquids is crucial for various industrial processes.
Previous studies often simplified bubble interactions or lacked detailed flow field analysis.

Purpose of the Study:

To numerically investigate the dynamics of rising air bubble clusters and their induced flow fields.
To analyze the aggregation effect and vortex ring formation during bubble cluster ascent.

Main Methods:

Employed a three-dimensional two-way coupling algorithm based on the vortex-in-cell (VIC) method.
Vortex elements were convected in the Lagrangian frame, with liquid velocity solved via a Poisson equation on an Eulerian grid.
Two-way coupling incorporated a vorticity source term from the void fraction gradient.

Main Results:

Simulation results were validated against experimental bubble plume data.
The aggregation effect enhances average rising velocity, exceeding single bubble terminal velocity.
Smaller initial distances between tandem bubble clusters led to stronger aggregation, vortex structures, and higher velocities.

Conclusions:

The VIC method is a valid tool for simulating bubble plume dynamics.
Bubble cluster aggregation significantly impacts rising velocity and flow field characteristics.
Tandem bubble cluster interactions are distance-dependent, influencing vortex strength and ascent speed.