Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers
A new micromixer design based on uniform circular obstacles and cross flow (UCCFM) of the fluid streams was proposed. Water-ethanol and oil-ethanol mixing was assessed for Reynolds numbers ranging from 0.1 to 100 by CFD simulations. The performance index was evaluated providing the ratio of fluid mi...
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AIDIC Servizi S.r.l.
2019-05-01
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Series: | Chemical Engineering Transactions |
Online Access: | https://www.cetjournal.it/index.php/cet/article/view/9940 |
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doaj-bdca1b72145a4feba077a38102a4bbab2021-02-16T21:04:41ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162019-05-017410.3303/CET1974175Numerical Simulations of New Uniform Circular Obstacles Cross-flow MicromixersJoao Silva Jr.Harrson SantanaOsvaldir TarantoA new micromixer design based on uniform circular obstacles and cross flow (UCCFM) of the fluid streams was proposed. Water-ethanol and oil-ethanol mixing was assessed for Reynolds numbers ranging from 0.1 to 100 by CFD simulations. The performance index was evaluated providing the ratio of fluid mixing degree (MI) to the unit of pressure drop along the micromixer. For both systems, the highest performance indexes were noticed at Re = 0.01, a flow regime characterized by molecular diffusion controlling the mass transfer. The UCCFM design with diameter = 600 µm allowed good fluid mixing for water-ethanol at Re = 0.01 (MI = 0.815) with a very low pressure drop of 0.123 Pa. For oil-ethanol mixing, the MI = 0.693 was obtained with a pressure drop of 76.06 Pa. The UCCFM presented a superior MI in low Reynolds number regarding other micromixer designs in literature.https://www.cetjournal.it/index.php/cet/article/view/9940 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Joao Silva Jr. Harrson Santana Osvaldir Taranto |
spellingShingle |
Joao Silva Jr. Harrson Santana Osvaldir Taranto Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers Chemical Engineering Transactions |
author_facet |
Joao Silva Jr. Harrson Santana Osvaldir Taranto |
author_sort |
Joao Silva Jr. |
title |
Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers |
title_short |
Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers |
title_full |
Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers |
title_fullStr |
Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers |
title_full_unstemmed |
Numerical Simulations of New Uniform Circular Obstacles Cross-flow Micromixers |
title_sort |
numerical simulations of new uniform circular obstacles cross-flow micromixers |
publisher |
AIDIC Servizi S.r.l. |
series |
Chemical Engineering Transactions |
issn |
2283-9216 |
publishDate |
2019-05-01 |
description |
A new micromixer design based on uniform circular obstacles and cross flow (UCCFM) of the fluid streams was proposed. Water-ethanol and oil-ethanol mixing was assessed for Reynolds numbers ranging from 0.1 to 100 by CFD simulations. The performance index was evaluated providing the ratio of fluid mixing degree (MI) to the unit of pressure drop along the micromixer. For both systems, the highest performance indexes were noticed at Re = 0.01, a flow regime characterized by molecular diffusion controlling the mass transfer. The UCCFM design with diameter = 600 µm allowed good fluid mixing for water-ethanol at Re = 0.01 (MI = 0.815) with a very low pressure drop of 0.123 Pa. For oil-ethanol mixing, the MI = 0.693 was obtained with a pressure drop of 76.06 Pa. The UCCFM presented a superior MI in low Reynolds number regarding other micromixer designs in literature. |
url |
https://www.cetjournal.it/index.php/cet/article/view/9940 |
work_keys_str_mv |
AT joaosilvajr numericalsimulationsofnewuniformcircularobstaclescrossflowmicromixers AT harrsonsantana numericalsimulationsofnewuniformcircularobstaclescrossflowmicromixers AT osvaldirtaranto numericalsimulationsofnewuniformcircularobstaclescrossflowmicromixers |
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