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Experiments in Fluids

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01-02-2021 | Research Article

Experimental study on laminar mixing in planetary mixer

Authors: T. Yamagata, H. Sugisawa, N. Fujisawa

Published in: Experiments in Fluids | Issue 2/2021

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Abstract

The mechanism of laminar mixing in a planetary mixer of cylindrical container in precession was studied experimentally using three different types of flow measurement techniques, the measurement of mixing from particle dispersion, cross-sectional velocity measurement by particle image velocimetry (PIV), and the three-dimensional trajectory observation by stereo imaging. These visualization studies reveal that the laminar mixing performance was improved in a certain range of precession rate (the ratio of revolution to rotation), whereas the three-dimensional flow structure promoted the laminar mixing in the container. Furthermore, it was found that the three-dimensional tracer trajectory highly fluctuated in the cylindrical container at the optimum precession rate. This was caused by the occurrence of chaotic advection in the cylindrical container by the influence of precession. The results were supported by the numerical simulations of laminar mixing in the planetary mixer reported in the literature.

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Title: Experimental study on laminar mixing in planetary mixer
Authors: T. Yamagata
H. Sugisawa
N. Fujisawa
Publication date: 01-02-2021
Publisher: Springer Berlin Heidelberg
Published in: Experiments in Fluids / Issue 2/2021
Print ISSN: 0723-4864
Electronic ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-021-03146-2

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