Print Email Facebook Twitter Detailed simulations of liquid and solid-liquid mixing: Turbulent agitated flow and mass transfer Title Detailed simulations of liquid and solid-liquid mixing: Turbulent agitated flow and mass transfer Author Hartmann, H. Contributor Van den Akker, H.E.A. (promotor) Faculty Applied Sciences Date 2005-11-18 Abstract This thesis aims at a contribution to reliable and accurate predictions of complex, multi-phase processes. The reader is presented detailed simulations on liquid and solid-liquid mixing using large eddy simulations (LES) including scalar mixing and particle transport in a Rushton turbine stirred tank geometry. Large eddy simulations have been critically assessed against LDA (Laser Doppler Anemometry) experiments and a transient RANS (Reynolds-Averaged Navier-Stokes) simulation. Furthermore, attention is paid to the recovery of large-scale precessing vortices (i.e. a so-called macro-instability) by means of LES. A scalar mixing solver has been developed and assessed in order to predict the mixing performance (in terms of a mixing time) of the turbulent flow generated by a Rushton turbine in a stirred tank. A simple blending process is used as a reference case. For the ultimate simulation of a dissolution process, a particle transport solver has been coupled to the flow and scalar mixing solvers. The results provide insight in the complex interaction between the turbulent flow phenomena, particle transport, and mass transfer. Subject stirred tankturbulencescalar mxingsolids suspensionmass transfer To reference this document use: http://resolver.tudelft.nl/uuid:0690f5f1-c13a-45e9-bc40-6a7a12f6571b ISBN 90-6464-234-6 Part of collection Institutional Repository Document type doctoral thesis Rights (c) 2005 H.Hartmann Files PDF as_hartmann_20051118.pdf 15.06 MB Close viewer /islandora/object/uuid:0690f5f1-c13a-45e9-bc40-6a7a12f6571b/datastream/OBJ/view