Khatir, Z orcid.org/0000-0002-7559-7644, Hanson, BC orcid.org/0000-0002-1720-1656, Fairweather, M et al. (1 more author) (2016) High-fidelity CFD simulations of pulsed sieve-plate extraction columns. In: Proceedings of the 11th International ERTOFACS Symposium on Engineering Turbulence Modelling and Measurements (ETMM11). ETMM11, 21-23 Sep 2016, Palermo, Italy.
Abstract
The pulsed sieve-plate extraction column (PSEC) is a technology for liquid-liquid extraction processes widely used in various industries, and commonly employed in nuclear fuel reprocessing. A high fidelity computational fluid dynamic model of a solvent PSEC has been developed and run with single-phase water. The PSEC investigated consists of two perforated plate internals, operated under 1 Hz pulsing frequency, 20 mm amplitude and a plate spacing of 50 mm. The CFD used was based on unsteady flow calculations undertaken with a conventionally used RANS model, closed with the standard k-ε turbulence model, and a large eddy simulation (LES). Results are compared with experimental data, where available, and agreement is improved by using the more accurate predictions of the turbulent flow in the column offered by large eddy simulation. Significant differences between predictions of the RANS and LES approaches are also found, drawing into question the usefulness of the former for predicting these complex flows. The CFD analysis brings useful insight into the hydrodynamics in PSECs, which provides better understanding for further work on both single- and two-phase flows in these devices.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/L018616/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Oct 2016 09:08 |
Last Modified: | 19 Nov 2019 09:41 |
Status: | Published |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:105537 |