A semi-empirical model to predict the probability of capture of buoyant particles by a cylindrical collector through capillarity

•Collector retention (Pc) due to capillarity is described by semi-empirical model.•The model parameters were calibrated through data collected in flume experiments.•Pc recovers at high velocity due to the superposition of capillary and wake trapping. The seeds of many aquatic plants, as well as many...

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Bibliographic Details
Published in:Advances in water resources 2016-11, Vol.97, p.168-174
Main Authors: Peruzzo, Paolo, Pietro Viero, Daniele, Defina, Andrea
Format: Article
Language:English
Subjects:
Aquatic plants
Attraction
Buoyancy
Calibration
Capillarity
Cheerios effect
Collectors
Drag
Emergent aquatic plants
Emergent vegetation
Empirical models
Floating particle
Hydrocoria
Laboratory experiments
Larvae
Mathematical models
Particle retention
Piercing
Probability theory
Seeds
Surface tension
Vegetation
Water resources
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Summary:•Collector retention (Pc) due to capillarity is described by semi-empirical model.•The model parameters were calibrated through data collected in flume experiments.•Pc recovers at high velocity due to the superposition of capillary and wake trapping. The seeds of many aquatic plants, as well as many propagulae and larvae, are buoyant and transported at the water surface. These particles are therefore subject to surface tension, which may enhance their capture by emergent vegetation through capillary attraction. In this work, we develop a semi-empirical model that predicts the probability that a floating particle is retained by plant stems and branches piercing the water surface, due to capillarity, against the drag force exerted by the flowing water. Specific laboratory experiments are also performed to calibrate and validate the model.
ISSN:0309-1708
1872-9657
DOI:10.1016/j.advwatres.2016.09.006