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Updated: May 18, 2026

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

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Published on: April 17, 2015

Large bubble rupture sparks fast liquid jet.

Thomas Séon¹, Arnaud Antkowiak

¹Institut Jean Le Rond d'Alembert, Université Pierre et Marie Curie and CNRS, UMR 7190, 4 Place Jussieu, F-75005 Paris, France.

Physical Review Letters

|October 4, 2012

Summary

This summary is machine-generated.

Researchers observed long jets from breaking bubbles, developing a universal scaling law for jet velocity. This gravity-driven phenomenon, independent of pinch-off, suggests energy focusing within the bubble dynamics.

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Area of Science:

Fluid dynamics
Bubble dynamics
Experimental physics

Background:

Elongated bubbles exhibit complex behaviors during detachment.
Previous studies have not fully characterized the jetting phenomenon in disconnecting bubbles.

Purpose of the Study:

To experimentally observe and characterize the formation of long, narrow jets from disconnecting elongated bubbles.
To propose a universal scaling law for the jet velocity.
To investigate the driving forces behind this jetting phenomenon.

Main Methods:

Experiments were conducted using liquids with varying viscosities, surface tensions, and densities.
Different nozzle radii were employed to study their effect on jet formation.
Jet velocity was measured and analyzed in relation to bubble dimensions and fluid properties.

Main Results:

Observed novel phenomenon of long, narrow jets ejected from disconnecting large elongated bubbles.
Proposed a universal scaling law for jet velocity, V ~ h^(3/2), where h is bubble height.
Demonstrated that the jetting is driven by gravity and is independent of the pinch-off singularity.

Conclusions:

The observed jetting phenomenon is a gravity-driven energy focusing process.
The universal scaling law provides a new predictive model for jet velocity in bubble dynamics.
This finding offers insights into energy transfer mechanisms in fluid interfaces.