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Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying

A detached eddy simulation (DES) and a k-ε-based Reynolds-averaged Navier–Stokes (RANS) calculation on the co-current spray drying chamber is presented. The {DES} used here is based on the Spalart–Allmaras (SA) turbulence model, whereas the standard k-ε (SKE) was considered here for comparison purpo...

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Main Authors: Jolius, Gimbun, Noor Intan Shafinas, Muhammad, Law, Woon Phui
Format: Article
Language:English
Published: Elsevier Ltd 2015
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/13046/1/fkksa-2015-jolius-Unsteady%20RANS%20and%20Detached%20Eddy%20Simulation.pdf
http://umpir.ump.edu.my/id/eprint/13046/
http://dx.doi.org/10.1016/j.cjche.2015.05.007
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spelling my.ump.umpir.130462019-10-03T08:10:15Z http://umpir.ump.edu.my/id/eprint/13046/ Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying Jolius, Gimbun Noor Intan Shafinas, Muhammad Law, Woon Phui TP Chemical technology A detached eddy simulation (DES) and a k-ε-based Reynolds-averaged Navier–Stokes (RANS) calculation on the co-current spray drying chamber is presented. The {DES} used here is based on the Spalart–Allmaras (SA) turbulence model, whereas the standard k-ε (SKE) was considered here for comparison purposes. Predictions of the mean axial velocity, temperature and humidity profile have been evaluated and compared with experimental measurements. The effects of the turbulence model on the predictions of the mean axial velocity, temperature and the humidity profile are most noticeable in the (highly anisotropic) spraying region. The findings suggest that {DES} provide a more accurate prediction (with error less than 5) of the flow field in a spray drying chamber compared with RANS-based k-ε models. The {DES} simulation also confirmed the presence of anisotropic turbulent flow in the spray dryer from the analysis of the velocity component fluctuations and turbulent structure as illustrated by the Q-criterion. Elsevier Ltd 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/13046/1/fkksa-2015-jolius-Unsteady%20RANS%20and%20Detached%20Eddy%20Simulation.pdf Jolius, Gimbun and Noor Intan Shafinas, Muhammad and Law, Woon Phui (2015) Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying. Chinese Journal of Chemical Engineering, 23 (9). 1421 - 1428. ISSN 1004-9541 http://dx.doi.org/10.1016/j.cjche.2015.05.007 DOI: 10.1016/j.cjche.2015.05.007
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Jolius, Gimbun
Noor Intan Shafinas, Muhammad
Law, Woon Phui
Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying
description A detached eddy simulation (DES) and a k-ε-based Reynolds-averaged Navier–Stokes (RANS) calculation on the co-current spray drying chamber is presented. The {DES} used here is based on the Spalart–Allmaras (SA) turbulence model, whereas the standard k-ε (SKE) was considered here for comparison purposes. Predictions of the mean axial velocity, temperature and humidity profile have been evaluated and compared with experimental measurements. The effects of the turbulence model on the predictions of the mean axial velocity, temperature and the humidity profile are most noticeable in the (highly anisotropic) spraying region. The findings suggest that {DES} provide a more accurate prediction (with error less than 5) of the flow field in a spray drying chamber compared with RANS-based k-ε models. The {DES} simulation also confirmed the presence of anisotropic turbulent flow in the spray dryer from the analysis of the velocity component fluctuations and turbulent structure as illustrated by the Q-criterion.
format Article
author Jolius, Gimbun
Noor Intan Shafinas, Muhammad
Law, Woon Phui
author_facet Jolius, Gimbun
Noor Intan Shafinas, Muhammad
Law, Woon Phui
author_sort Jolius, Gimbun
title Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying
title_short Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying
title_full Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying
title_fullStr Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying
title_full_unstemmed Unsteady RANS and Detached Eddy Simulation of the Multiphase Flow in a Co-Current Spray Drying
title_sort unsteady rans and detached eddy simulation of the multiphase flow in a co-current spray drying
publisher Elsevier Ltd
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/13046/1/fkksa-2015-jolius-Unsteady%20RANS%20and%20Detached%20Eddy%20Simulation.pdf
http://umpir.ump.edu.my/id/eprint/13046/
http://dx.doi.org/10.1016/j.cjche.2015.05.007
_version_ 1648741075469205504
score 13.211869

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