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Related Experiment Video

Updated: May 24, 2026

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

High-speed jetting and spray formation from bubble collapse.

Badarinath Karri¹, Silvestre Roberto Gonzalez Avila, Yee Chong Loke

¹NUS Graduate School for Integrative Sciences and Engineering (NGS), Center for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|March 10, 2012

Summary

Researchers created high-speed micro-jets using collapsing cavitation bubbles. This method generates precise liquid jets and sprays on demand for micrometer-scale applications.

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Area of Science:

Physics
Fluid Dynamics
Acoustics

Background:

Cavitation bubbles are dynamic phenomena with potential applications.
Controlling micro-scale fluid behavior is crucial for various scientific and industrial fields.

Purpose of the Study:

To present a novel method for generating impacting jets at the micrometer length scale.
To investigate the characteristics of jets produced by collapsing cavitation bubbles.

Main Methods:

Nucleation of a cavitation bubble using a focused lithotripter shock wave below a 25 μm hole in a silicon plate at an air-water interface.
Observation of bubble expansion and collapse dynamics.
Analysis of generated micro-jets and liquid sheet formation.

Main Results:

The collapsing bubble produced two distinct jets: a slow jet (∼10 m/s) and a fast jet (∼50 m/s).
Coaxial impact of these jets formed a circular liquid sheet.
Increased shock pressure led to the sheet breaking into a fine spray.

Conclusions:

A method to generate high-speed micro-jets and fine sprays on demand was demonstrated.
The study highlights the potential of controlled cavitation bubble collapse for microfluidic applications.