Lagrangian sensors in a stirred tank reactor: comparing trajectories from 4D-Particle Tracking Velocimetry and Lattice-Boltzmann simulations

Sebastian Hofmann, Christian Weiland, Jürgen Fitschen, Alexandra von Kameke, Marko Hoffmann & Michael Schlüter
In this study, three-dimensional flow measurements by means of 4D-Particle Tracking Velocimetry (4D-PTV) are carried out in a laboratory-scale 3 L stirred tank reactor in order to investigate the flow-following behavior of two different inertial particle types, Polyethylene (PE) particles and alginate beads, at different impeller frequencies. Applied particles mimic Lagrangian sensor particles, which are intended to determine process parameters such as oxygen concentration at their corresponding position inside a bioreactor. Accompanying Lattice-Boltzmann Large Eddy...
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