Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer

The laminar flow pattern and mixing behavior of incompressible Newtonian fluids in different modified mixer ‎configurations were numerically investigated using Computational Fluid Dynamics (CFD) simulations in the range of ‎Re=0.15-100. The governing equations were solved by ANSYS Fluent 14 using th...

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Autores principales: A. Talhaoui, B. Draoui, A. Youcefi
Formato: article
Lenguaje:EN
Publicado: Isfahan University of Technology 2021
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Acceso en línea:https://doaj.org/article/459d933ed90c4ffbb727eb63036fc75d
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spelling oai:doaj.org-article:459d933ed90c4ffbb727eb63036fc75d2021-11-13T07:03:04ZEffect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer1735-3572https://doaj.org/article/459d933ed90c4ffbb727eb63036fc75d2021-01-01T00:00:00Zhttp://jafmonline.net/JournalArchive/download?file_ID=56647&issue_ID=1015https://doaj.org/toc/1735-3572The laminar flow pattern and mixing behavior of incompressible Newtonian fluids in different modified mixer ‎configurations were numerically investigated using Computational Fluid Dynamics (CFD) simulations in the range of ‎Re=0.15-100. The governing equations were solved by ANSYS Fluent 14 using the second-order finite volume method ‎‎(FVM) and the SIMPLE algorithm scheme. The computational model is assessed by comparing the predicted pressure ‎drop results to empirical correlations in the literature. The effects of incorporated helical overlapped mixer elements and ‎the diameter aspect ratio (C) on the mixing efficiency for different mixer geometries were examined and evaluated by ‎characteristics measures of Intensity of Segregation (IOS), pressure drop, extensional efficiency, and G-factor. The ‎performance of new modified mixers is evaluated via comparison with the standard industrial Kenics static mixer. The ‎static mixers with modified internal geometry achieved fast mixing and better mixing quality than the Kenics mixer. ‎Besides, an increase in diameter aspect ratio C benefited from a decrease in pressure drop within the static. The ‎modified mixer: C=1.5 was found to have the highest mixing efficiency, concerning short mixing length with marginally ‎higher pressure drop than the other mixers. In contrast, the mixer: C=2 is the most efficient based on low pressure drop ‎and energy requirement with slightly greater mixing length‎‎.A. TalhaouiB. DraouiA. YoucefiIsfahan University of Technology articlemixing; laminar flow; static mixer; overlapped mixer; mixing performance; mixer efficiency.Mechanical engineering and machineryTJ1-1570ENJournal of Applied Fluid Mechanics, Vol 14, Iss 6, Pp 1643-1656 (2021)
institution DOAJ
collection DOAJ
language EN
topic mixing; laminar flow; static mixer; overlapped mixer; mixing performance; mixer efficiency.
Mechanical engineering and machinery
TJ1-1570
spellingShingle mixing; laminar flow; static mixer; overlapped mixer; mixing performance; mixer efficiency.
Mechanical engineering and machinery
TJ1-1570
A. Talhaoui
B. Draoui
A. Youcefi
Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer
description The laminar flow pattern and mixing behavior of incompressible Newtonian fluids in different modified mixer ‎configurations were numerically investigated using Computational Fluid Dynamics (CFD) simulations in the range of ‎Re=0.15-100. The governing equations were solved by ANSYS Fluent 14 using the second-order finite volume method ‎‎(FVM) and the SIMPLE algorithm scheme. The computational model is assessed by comparing the predicted pressure ‎drop results to empirical correlations in the literature. The effects of incorporated helical overlapped mixer elements and ‎the diameter aspect ratio (C) on the mixing efficiency for different mixer geometries were examined and evaluated by ‎characteristics measures of Intensity of Segregation (IOS), pressure drop, extensional efficiency, and G-factor. The ‎performance of new modified mixers is evaluated via comparison with the standard industrial Kenics static mixer. The ‎static mixers with modified internal geometry achieved fast mixing and better mixing quality than the Kenics mixer. ‎Besides, an increase in diameter aspect ratio C benefited from a decrease in pressure drop within the static. The ‎modified mixer: C=1.5 was found to have the highest mixing efficiency, concerning short mixing length with marginally ‎higher pressure drop than the other mixers. In contrast, the mixer: C=2 is the most efficient based on low pressure drop ‎and energy requirement with slightly greater mixing length‎‎.
format article
author A. Talhaoui
B. Draoui
A. Youcefi
author_facet A. Talhaoui
B. Draoui
A. Youcefi
author_sort A. Talhaoui
title Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer
title_short Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer
title_full Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer
title_fullStr Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer
title_full_unstemmed Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer
title_sort effect of geometry design on mixing performance of newtonian fluids using helical overlapped mixer elements in kenics static mixer
publisher Isfahan University of Technology
publishDate 2021
url https://doaj.org/article/459d933ed90c4ffbb727eb63036fc75d
work_keys_str_mv AT atalhaoui effectofgeometrydesignonmixingperformanceofnewtonianfluidsusinghelicaloverlappedmixerelementsinkenicsstaticmixer
AT bdraoui effectofgeometrydesignonmixingperformanceofnewtonianfluidsusinghelicaloverlappedmixerelementsinkenicsstaticmixer
AT ayoucefi effectofgeometrydesignonmixingperformanceofnewtonianfluidsusinghelicaloverlappedmixerelementsinkenicsstaticmixer
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