Application of hybrid RANS-LES models to the prediction of flow, residence time and solids distribution in an industrial crystalliser

Gary Brown

doi:10.26182/mq5p-ht38

Application of hybrid RANS-LES models to the prediction of flow, residence time and solids distribution in an industrial crystalliser

Gary Brown

School of Engineering

Research output: Thesis › Doctoral Thesis

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Abstract

Hybrid RANS-LES models were used to investigate the flow field, residence time and solids distribution in an industrial crystalliser. On an appropriate mesh where the large-scale turbulence structures are adequately resolved, hybrid RANS-LES models were found to give good agreement with experimental data and to provide a significant improvement over RANS predictions in all elements of the flow studied. Further, it is concluded that the simulation times and model complexity are appropriate for the broader application of hybrid RANS-LES models in the investigation of internal flows relevant to the process industries.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Leggoe, Jeremy, Supervisor Aman, Zach, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	17 Oct 2023
DOIs	https://doi.org/10.26182/mq5p-ht38
Publication status	Unpublished - 2023

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10.26182/mq5p-ht38

THESIS - DOCTOR OF PHILOSOPHY - BROWN Gary James - 2023
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5 Article

Application of Stress Blended Eddy Simulation to the prediction of clarified layer depth and solids suspension in a draft tube reactor
Brown, G. J., Fletcher, D. F., Leggoe, J. W. & Whyte, D. S., Sept 2023, In: Chemical Engineering Research and Design. 197, p. 292-306 15 p.
Research output: Contribution to journal › Article › peer-review
1 Citation (Scopus)
Impact of impeller modelling approaches on SBES simulations of flow and residence time in a draft tube reactor
Brown, G. J., Fletcher, D. F., Leggoe, J. W. & Whyte, D. S., Feb 2022, In: Chemical Engineering Research and Design. 178, p. 157-163 7 p.
Research output: Contribution to journal › Article › peer-review
2 Citations (Scopus)
Application of hybrid RANS-LES models to the prediction of mixing time and residence time distribution: Case study of a draft tube reactor
Brown, G. J., Fletcher, D. F., Leggoe, J. W. & Whyte, D. S., 31 Aug 2021, In: Chemical Engineering Science. 240, 116676.
Research output: Contribution to journal › Article › peer-review
6 Citations (Scopus)

Cite this

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title = "Application of hybrid RANS-LES models to the prediction of flow, residence time and solids distribution in an industrial crystalliser",

abstract = "Hybrid RANS-LES models were used to investigate the flow field, residence time and solids distribution in an industrial crystalliser. On an appropriate mesh where the large-scale turbulence structures are adequately resolved, hybrid RANS-LES models were found to give good agreement with experimental data and to provide a significant improvement over RANS predictions in all elements of the flow studied. Further, it is concluded that the simulation times and model complexity are appropriate for the broader application of hybrid RANS-LES models in the investigation of internal flows relevant to the process industries.",

keywords = "CFD modelling, Hybrid RANS-LES turbulence models, Stress blended Eddy simulation, Draft tube crystalliser, Flow prediction, Residence time, Particle suspension",

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year = "2023",

doi = "10.26182/mq5p-ht38",

language = "English",

school = "The University of Western Australia",

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AB - Hybrid RANS-LES models were used to investigate the flow field, residence time and solids distribution in an industrial crystalliser. On an appropriate mesh where the large-scale turbulence structures are adequately resolved, hybrid RANS-LES models were found to give good agreement with experimental data and to provide a significant improvement over RANS predictions in all elements of the flow studied. Further, it is concluded that the simulation times and model complexity are appropriate for the broader application of hybrid RANS-LES models in the investigation of internal flows relevant to the process industries.

KW - CFD modelling

KW - Hybrid RANS-LES turbulence models

KW - Stress blended Eddy simulation

KW - Draft tube crystalliser

KW - Flow prediction

KW - Residence time

KW - Particle suspension

U2 - 10.26182/mq5p-ht38

DO - 10.26182/mq5p-ht38

M3 - Doctoral Thesis

ER -

Application of hybrid RANS-LES models to the prediction of flow, residence time and solids distribution in an industrial crystalliser

Abstract

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Research output

Application of Stress Blended Eddy Simulation to the prediction of clarified layer depth and solids suspension in a draft tube reactor

Impact of impeller modelling approaches on SBES simulations of flow and residence time in a draft tube reactor

Application of hybrid RANS-LES models to the prediction of mixing time and residence time distribution: Case study of a draft tube reactor

Cite this