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- Title
A general methodology for extracting and categorising flow patterns in turbulent stirred tank mixers based on 2-D network-of-zones (NoZ) model.
- Authors
Bai, Yuqi; Fonte, Cláudio Pereira; Kowalski, Adam; Rosales-Trujillo, Waldo; Rodgers, Thomas Lawrence
- Abstract
A general methodology for characterising stirred tank mixers using two-dimensional network-of-zones (2-D NoZ) model was introduced in this work. Starting from high resolution 3-D velocity field database such as CFD simulations, flow patterns were preserved and simplified into 2-D inter-zonal flowrates and mass imbalances were corrected in the defined routine. Mixing time estimation and turbulent dissipation rate profiles were chosen as metrics for evaluation of the generated 2-D NoZ model, which were compared to CFD passive scalar and literature results on two typical stirred tank geometries covering both radial flow and axial flow impellers. [Display omitted] • Generalised process for coarse-graining flow patterns in stirred tank mixers using network-of-zones model. • Mixing time estimation based on extracted flow patterns. • Case studies on two representative radial and axial flow impellers.
- Subjects
TURBULENCE; TURBULENT flow; AXIAL flow; TIME perception; TURBULENT mixing; RADIAL flow
- Publication
Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2023, Vol 194, p829
- ISSN
0263-8762
- Publication type
Article
- DOI
10.1016/j.cherd.2023.05.022