Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank

A detached eddy simulation (DES), a large-eddy simulation (LES), and a k-ε-based Reynolds averaged Navier-Stokes (RANS) calculation on the single phase turbulent flow in a fully baffled stirred tank, agitated by a Rushton turbine is presented. The DES used here is based on the Spalart-Allmaras turbu...

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Main Authors:	Jolius, Gimbun, Rielly, Chris Rielly, Nagy, Zoltan Nagy, Derksen, Jos J.
Format:	Article
Language:	English
Published:	Wiley 2012
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/11832/ http://umpir.ump.edu.my/id/eprint/11832/ http://umpir.ump.edu.my/id/eprint/11832/ http://umpir.ump.edu.my/id/eprint/11832/1/Detached%20Eddy%20Simulation%20On%20The%20Turbulent%20Flow%20In%20A%20Stirred%20Tank.pdf

id	ump-11832
recordtype	eprints
spelling	ump-118322018-02-21T01:51:40Z http://umpir.ump.edu.my/id/eprint/11832/ Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank Jolius, Gimbun Rielly, Chris Rielly Nagy, Zoltan Nagy Derksen, Jos J. TP Chemical technology A detached eddy simulation (DES), a large-eddy simulation (LES), and a k-ε-based Reynolds averaged Navier-Stokes (RANS) calculation on the single phase turbulent flow in a fully baffled stirred tank, agitated by a Rushton turbine is presented. The DES used here is based on the Spalart-Allmaras turbulence model solved on a grid containing about a million control volumes. The standard k-ε and LES were considered here for comparison purposes. Predictions of the impeller-angle-resolved and time-averaged turbulent flow have been evaluated and compared with data from laser doppler anemometry measurements. The effects of the turbulence model on the predictions of the mean velocity components and the turbulent kinetic energy are most pronounced in the (highly anisotropic) trailing vortex core region, with specifically DES performing well. The LES—that was performed on the same grid as the DES—appears to lack resolution in the boundary layers on the surface of the impeller. The findings suggest that DES provides a more accurate prediction of the features of the turbulent flows in a stirred tank compared with RANS-based models and at the same time alleviates resolution requirements of LES close to walls. Wiley 2012-10-01 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11832/1/Detached%20Eddy%20Simulation%20On%20The%20Turbulent%20Flow%20In%20A%20Stirred%20Tank.pdf Jolius, Gimbun and Rielly, Chris Rielly and Nagy, Zoltan Nagy and Derksen, Jos J. (2012) Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank. AIChE Journal, 58. pp. 3224-3241. ISSN 1547-5905 http://dx.doi.org/10.1002/aic.12807 DOI: 10.1002/aic.12807
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Jolius, Gimbun Rielly, Chris Rielly Nagy, Zoltan Nagy Derksen, Jos J. Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank
description	A detached eddy simulation (DES), a large-eddy simulation (LES), and a k-ε-based Reynolds averaged Navier-Stokes (RANS) calculation on the single phase turbulent flow in a fully baffled stirred tank, agitated by a Rushton turbine is presented. The DES used here is based on the Spalart-Allmaras turbulence model solved on a grid containing about a million control volumes. The standard k-ε and LES were considered here for comparison purposes. Predictions of the impeller-angle-resolved and time-averaged turbulent flow have been evaluated and compared with data from laser doppler anemometry measurements. The effects of the turbulence model on the predictions of the mean velocity components and the turbulent kinetic energy are most pronounced in the (highly anisotropic) trailing vortex core region, with specifically DES performing well. The LES—that was performed on the same grid as the DES—appears to lack resolution in the boundary layers on the surface of the impeller. The findings suggest that DES provides a more accurate prediction of the features of the turbulent flows in a stirred tank compared with RANS-based models and at the same time alleviates resolution requirements of LES close to walls.
format	Article
author	Jolius, Gimbun Rielly, Chris Rielly Nagy, Zoltan Nagy Derksen, Jos J.
author_facet	Jolius, Gimbun Rielly, Chris Rielly Nagy, Zoltan Nagy Derksen, Jos J.
author_sort	Jolius, Gimbun
title	Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank
title_short	Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank
title_full	Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank
title_fullStr	Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank
title_full_unstemmed	Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank
title_sort	detached eddy simulation on the turbulent flow in a stirred tank
publisher	Wiley
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/11832/ http://umpir.ump.edu.my/id/eprint/11832/ http://umpir.ump.edu.my/id/eprint/11832/ http://umpir.ump.edu.my/id/eprint/11832/1/Detached%20Eddy%20Simulation%20On%20The%20Turbulent%20Flow%20In%20A%20Stirred%20Tank.pdf
first_indexed	2023-09-18T22:12:50Z
last_indexed	2023-09-18T22:12:50Z
_version_	1777415141518737408

Detached Eddy Simulation on the Turbulent Flow in a Stirred Tank

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