Visualizing large-scale flow using synthetic aperture PIV

Josje van Houwelingen; Ad Holten; Herman Clercx; Rudie Kunnen; Jaap Molenaar; Willem van de Water

doi:10.1007/s00348-019-2836-9

Visualizing large-scale flow using synthetic aperture PIV

Josje van Houwelingen, Ad Holten, Herman Clercx, Rudie Kunnen, Jaap Molenaar, Willem van de Water (Corresponding author)

Fluids and Flows

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

We discuss the application of synthetic aperture particle image velocimetry for measuring the flow around human swimmers using small bubbles as tracer. We quantify the two-dimensional projection of the velocity field in planes perpendicular to the viewing direction of an array of six cameras. With help of simulations, modelled after the experiment, we address questions about depth selectivity and occlusion in dense bubble fields. Using vortex rings in the swimming pool, we provide a proof of principle of the method. It is further illustrated by the vorticity field produced by a human swimmer.

Original language	English
Article number	1
Number of pages	14
Journal	Experiments in Fluids
Volume	61
Issue number	1
DOIs	https://doi.org/10.1007/s00348-019-2836-9
Publication status	Published - Jan 2020

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AU - van de Water, Willem

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