CFD Simulation of Liquid-Liquid Extraction Columns and Visualization of Eulerian Datasets

Authors Mark W. Hlawitschka, Fang Chen, Hans-Jörg Bart, Bernd Hamann

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Mark W. Hlawitschka
Fang Chen
Hans-Jörg Bart
Bernd Hamann

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Mark W. Hlawitschka, Fang Chen, Hans-Jörg Bart, and Bernd Hamann. CFD Simulation of Liquid-Liquid Extraction Columns and Visualization of Eulerian Datasets. In Visualization of Large and Unstructured Data Sets: Applications in Geospatial Planning, Modeling and Engineering - Proceedings of IRTG 1131 Workshop 2011. Open Access Series in Informatics (OASIcs), Volume 27, pp. 59-70, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)


In this joint work, a complete framework for modeling, simulating and visualizing multiphase fluid flow within an extraction column is presented. We first present a volume-of-fluid simulation, which is able to predict the surface of the droplets during coalescence. However, a fast and efficient model is needed for the simulation of a liquid-liquid extraction column due to the high number of occurring droplets. To simulate the velocity and droplet size in a DN32 extraction column, a coupled computational fluid dynamic-population balance model solver is used. The simulation is analyzed using path-line based visualization techniques. A novel semi-automatic re-seeding technique for droplet path-line integration is proposed. With our technique, path-lines of fluid droplets can be re-initialized after contact with the stirring devices. The droplet breakage is captured, allowing the engineer to improve the design of liquid-liquid columns layout.
  • computational fluid dynamics
  • multiphase fluid
  • droplet collision
  • Eule- rian
  • path-line


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