Journal ArticleDOI
Numerical prediction of flow fields in baffled stirred vessels: A comparison of alternative modelling approaches
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TLDR
In this article, numerical simulations of the flow field in baffled mixing tanks, based on three alternative methods, are presented and discussed, where the impeller is not explicitly simulated, and its effects are modelled by imposing suitable, empirically derived, boundary conditions to the external flow.About:
This article is published in Chemical Engineering Science.The article was published on 1998-11-01. It has received 284 citations till now. The article focuses on the topics: Impeller & External flow.read more
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Journal ArticleDOI
Effect of the shaft eccentricity on the hydrodynamics of unbaffled stirred tanks
TL;DR: In this paper, the effect of the shaft eccentricity on the hydrodynamics of unbaffled stirred vessels is investigated using a combination of experiments carried out by particle image velocimetry, and computational fluid dynamics simulations, that offer a complete, transient volumetric representation of the three-dimensional flow field, once a proper modelling strategy is devised.
Journal ArticleDOI
Trailing Vortices of Rushton Turbine: PIV Measurements and CFD Simulations with Snapshot Approach
TL;DR: In this paper, a computational snapshot approach of Ranade and Dommeti was extended and used to simulate flow generated by the Rushton turbine in baffled stirred vessels using particle image velocimetry (PIV).
Journal ArticleDOI
Dense solid–liquid off-bottom suspension dynamics: Simulation and experiment
TL;DR: In this article, the authors investigated the dynamic evolution of the suspension from start-up to steady-state conditions by both visual experiments and computational fluid dynamics (CFDs) using a classical Eulerian-Eulerian multifluid model (MFM) along with the "homogeneous" k-ɛ turbulence model is adopted to simulate suspension dynamics.
Journal ArticleDOI
The effect of size, location and pumping direction of pitched blade turbine impellers on flow patterns: lda measurements and cfd predictions
TL;DR: In this paper, a combined LDA-CFD (MRF) study has been undertaken of the turbulent flow associated with two sizes of 6-bladed 45° pitch blade turbine at three clearances, either pumping up or down.
Journal ArticleDOI
On the simulation of stirred tank reactors via computational fluid dynamics
TL;DR: In this article, predictions of flow fields in a stirred tank reactor, obtained by computational fluid dynamics, were used for the simulation of a mixing sensitive process consisting of two parallel reactions competing for a common reagent.
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