3D-PTV on large particles in the free-surface vortex

Conference paper (2017)

Authors

S.P.A. Duinmeijer Gemeente Rotterdam, Sanitary Engineering -

F.H.L.R. Clemens Sanitary Engineering - , Deltares

Research Group

Sanitary Engineering () (TU Delft)

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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Water Management

Research Group

Sanitary Engineering

Abstract

Wastewater pumping stations can experience problems due the presence of floating particles of solidified fat and grease. To transport this debris, the ability of free-surface vortices as transport mechanism is investigated. An experimental set-up is developed where the behaviour of large particles (0.02 - 0.04 m) in the vortex flow are analysed. An 3D-particle tracking method based of 6 iPhone® cameras was used to record the position of the particles in the vortex. Based on the measured particle acceleration, the hydrodynamic forces on the particle are derived. This novel 3D-PTV method was found to generate consistent information on the movement of the particles in the vortex flow field.

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