Title: UDV measurements and CFD simulation of two-phase flow in a stirred vessel

Authors: Sanna Haavisto, Jouni Syrjanen, Antti Koponen, Mikko Manninen

Addresses: VTT Technical Research Centre of Finland, P.O. Box 1603, FIN-40101 Jyvaskyla, Finland. ' VTT Technical Research Centre of Finland, P.O. Box 1000, FIN-02044 VTT, Finland. ' VTT Technical Research Centre of Finland, P.O. Box 1603, FIN-40101 Jyvaskyla, Finland. ' VTT Technical Research Centre of Finland, P.O. Box 1000, FIN-02044 VTT, Finland

Abstract: Ultrasound Doppler Velocimetry (UDV) was successfully applied for measuring the three-dimensional velocity profiles of sand–water slurry in a cylindrical tank equipped with a 45° pitched blade turbine. Radial, axial and tangential velocity components were determined at the middle angular position between two baffles. The flow field in the tank was simulated by employing CFD with an algebraic slip mixture model combined with a sliding mesh method for the impeller. The simulated and measured velocity profiles were compared, and good general agreement between these results was found.

Keywords: CFD; computational fluid dynamics; hydrodynamics; chemical reactors; UDV; ultrasound Doppler velocimetry; stirred tank; solid–liquid flow; two-phase flow; velocity profiles; sand–water slurry; impellers.

DOI: 10.1504/PCFD.2009.027368

Progress in Computational Fluid Dynamics, An International Journal, 2009 Vol.9 No.6/7, pp.375 - 382

Published online: 21 Jul 2009 *

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