Wake flow measurements in towing tanks with PIV
Author Tukker, J., Blok, J.J., Kuiper, G. and Huijsmans, R.H.M.
Title Wake flow measurements in towing tanks with PIV
Conference/Journal 9th.International Symposium on flow visualization
Year 2000

Abstract
Particle Image Velocimetry (PIV) is a promising measuring technique for the maritime fluid mechanics research. PIV may visualize the spatial structure of unsteady flows and may deliver data sets for validation of (maritime) Computational Fluid Dynamics (CFD).
The feasibility of PIV in towing tanks has been studied in three different flow applications in two towing tanks using a two-dimensional PIV system (2D-PIV). These flow applications are a propeller wake, a lee side wake and a cylinder wake.
The measuring set-ups and the results of the feasibility study are presented. Attention has been paid to features of PIV in towing tanks, such as the dimensions of the measuring set-up, the seeding of a large quantity of water, the visibility of the particles in water, the towed set up, calibration and measuring accuracy.
The results of this study show that PIV is applicable in towing tanks and holds great promise for the maritime research on fluid mechanics.

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