What is it about?

This article establishes a theoretical model describing the distribution of jet velocity and radius along the jet, and superimposes the disturbance of the Plateau-Rayleigh instability on the theoretical model. The validity of the theoretical model and prediction method is verified by the experiment of jet breakup.

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Why is it important?

Our findings show the detailed analysis results and the tractable evaluation method of the effect of velocity and radius distribution on jet breakup, which is helpful to better predict and control the jet breakup length and droplet size. Also, when the influence of jet radius distribution on the growth rate of disturbance is considered, the breakup time is indirectly affected by the breakup length.


I hope this article will leave people with the idea that simplified theoretical analysis of the jet instability is still meaningful and interesting.

Tianyu Kang
Northeastern University

Read the Original

This page is a summary of: Effect of velocity and radius distribution on jet breakup, Physics of Fluids, January 2023, American Institute of Physics,
DOI: 10.1063/5.0133617.
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