Print Email Facebook Twitter Self-similar jet evolution after drop impact on a liquid surface Title Self-similar jet evolution after drop impact on a liquid surface Author Van Rijn, Cees J.M. (Universiteit van Amsterdam) Westerweel, J. (TU Delft Fluid Mechanics) Van Brummen, Bodjie (Student TU Delft) Antkowiak, Arnaud (Sorbonne Université, Paris) Bonn, Daniel (Universiteit van Amsterdam) Date 2021 Abstract Small conical-shaped jets may emanate from a liquid bath a short while after a small drop has hit a liquid pool. Here we perform Particle Image Velocimetry (PIV) measurements of the liquid flow inside upward jets after drop impact and show that fluid elements inside the jets may decelerate up to 5-20 times the gravitational acceleration. The measurements show that both the shape of the jet and the velocity profile are self-similar. A theoretical model including surface tension, fluid inertia and gravity correctly predicts the self-similar velocity profile and shape of the jet, allowing us to provide the first quantitative explanation of the shape and dynamics of the emanating jets. To reference this document use: http://resolver.tudelft.nl/uuid:f9851f85-bf43-48b5-bf05-234bf7f61ee6 DOI https://doi.org/10.1103/PhysRevFluids.6.034801 ISSN 2469-990X Source Physical Review Fluids, 6 (3) Part of collection Institutional Repository Document type journal article Rights © 2021 Cees J.M. Van Rijn, J. Westerweel, Bodjie Van Brummen, Arnaud Antkowiak, Daniel Bonn Files PDF PhysRevFluids.6.034801.pdf 1.1 MB Close viewer /islandora/object/uuid:f9851f85-bf43-48b5-bf05-234bf7f61ee6/datastream/OBJ/view