Topical Problems of Fluid Mechanics


Institute of Thermomechanics AS CR, v.v.i.	CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics	MIO Université du Sud Toulon Var - AMU - CNRS - IRD	Czech Pilot centre ERCOFTAC

CFD Simulation Methodology for Stirred Vessels Validated by Particle Tracking Velocimetry
Bílek V., Gebouský O., Haidl J., Pivokonský M.
Abstract:
Stirred vessels are an integral part of many industrial processes. Their design is often based on only experimental data which are limited by available experimental techniques; therefore, their optimisation is usually conducted via a trial-error approach. This study offers a validated CFD simulation methodology that could be used for optimisation and design of industrially relevant stirred vessels. The methodology is based on the RANS model employing the standard k − ϵ turbulence model and the multiple reference frame approach. The methodology is validated in a vessel that mimics the geometry of a flocculation tank, for which experimental data were also measured using particle tracking velocity and tracer tracking techniques. While the experimental and calculated flow fields show high agreement, simulations of tracer transport within the vessel indicate limitations in the standard approach to the turbulent transport modelling, specifically in the constant value of turbulent Schmidt number.
Keywords:
stirring, PTV, MRF, CFD

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2025.003

In Proceedings Topical Problems of Fluid Mechanics 2025, Prague, 2025, Edited by David Šimurda and Tomáš Bodnár, pp. 15 ISBN 978-80-87012-05-5 (Print) ISSN 2336-5781 (Print)