Self-similar jet evolution after drop impact on a liquid surface
نویسندگان
چکیده
Small conical-shaped jets may emanate from a liquid bath short while after small drop has hit pool. Here we perform Particle Image Velocimetry (PIV) measurements of the flow inside upward impact and show that fluid elements decelerate up to 5-20 times gravitational acceleration. The both shape jet velocity profile are self-similar. A theoretical model including surface tension, inertia, gravity correctly predicts self-similar jet, allowing us provide first quantitative explanation dynamics emanating jets.
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ژورنال
عنوان ژورنال: Physical review fluids
سال: 2021
ISSN: ['2469-9918', '2469-990X']
DOI: https://doi.org/10.1103/physrevfluids.6.034801