Group Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Title: 1.3.1 - Simulation of the Two-Phase Flow in a stirred Kühni Extraction Miniplant Column
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Title: 1.3.1 - Simulation of the Two-Phase Flow in a stirred Kühni Extraction Miniplant Column Industrial Applications
Series Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Physical Description: Conference Papers
Creator: Hlawitschka, M.W.
Bart, H.J.
Publisher: International Conference on Multiphase Flow (ICMF)
Publication Date: June 4, 2010
Subject: Kühni Miniplant column
two-phase flow
Abstract: The design of extraction columns is still based on simplified models, e.g. the HTU-NTU concept models, whereas non-idealities are accounted for the back flow dispersion model. In order to get a more detailed picture resolved in time and space, a coupling of CFD with population balance models is necessary, taking local hydrodynamics and droplet interactions into account. Previous studies concentrated on a RDC geometry, which can be simulated as a 2D case due to its geometry. This work focuses on the Kühni Miniplant column which can only be simulated in a 3D rotationally-symmetric framework. This defines the use of the instationary sliding-mesh technique for the simulation. Different k- models were studied in a single compartment segment with single phase flow. Two-phase simulations were carried out in a segment of five compartments using water-calcium chloride as continuous phase and n-butyl acetate as dispersed phase. The system was chosen because of its iso-optical behaviour which allows particle image velocimetry (PIV) measurements of the continuous phase. The energy dissipation, which is a key parameter in modeling of coalescence and breakage, is derived from PIV measurements and also compared to CFD predictions. It could be shown, that CFD can predict satisfactorily hydrodynamics and turbulence characteristics in a complex Kühni geometry.
General Note: The International Conference on Multiphase Flow (ICMF) first was held in Tsukuba, Japan in 1991 and the second ICMF took place in Kyoto, Japan in 1995. During this conference, it was decided to establish an International Governing Board which oversees the major aspects of the conference and makes decisions about future conference locations. Due to the great importance of the field, it was furthermore decided to hold the conference every three years successively in Asia including Australia, Europe including Africa, Russia and the Near East and America. Hence, ICMF 1998 was held in Lyon, France, ICMF 2001 in New Orleans, USA, ICMF 2004 in Yokohama, Japan, and ICMF 2007 in Leipzig, Germany. ICMF-2010 is devoted to all aspects of Multiphase Flow. Researchers from all over the world gathered in order to introduce their recent advances in the field and thereby promote the exchange of new ideas, results and techniques. The conference is a key event in Multiphase Flow and supports the advancement of science in this very important field. The major research topics relevant for the conference are as follows: Bio-Fluid Dynamics; Boiling; Bubbly Flows; Cavitation; Colloidal and Suspension Dynamics; Collision, Agglomeration and Breakup; Computational Techniques for Multiphase Flows; Droplet Flows; Environmental and Geophysical Flows; Experimental Methods for Multiphase Flows; Fluidized and Circulating Fluidized Beds; Fluid Structure Interactions; Granular Media; Industrial Applications; Instabilities; Interfacial Flows; Micro and Nano-Scale Multiphase Flows; Microgravity in Two-Phase Flow; Multiphase Flows with Heat and Mass Transfer; Non-Newtonian Multiphase Flows; Particle-Laden Flows; Particle, Bubble and Drop Dynamics; Reactive Multiphase Flows
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Bibliographic ID: UF00102023
Volume ID: VID00023
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: 131-Hlawitschka-ICMF2011.pdf

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