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Asymmetrical Split-and-Recombine Micromixer with Baffles

The present work proposes a planar micromixer design comprising hybrid mixing modules of split-and-recombine units and curved channels with radial baffles. The mixing performance was evaluated numerically by solving the continuity and momentum equations along with the advection-diffusion equation in...

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Detalles Bibliográficos
Autores principales: Raza, Wasim, Kim, Kwang-Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6952874/
https://www.ncbi.nlm.nih.gov/pubmed/31816973
http://dx.doi.org/10.3390/mi10120844
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author Raza, Wasim
Kim, Kwang-Yong
author_facet Raza, Wasim
Kim, Kwang-Yong
author_sort Raza, Wasim
collection PubMed
description The present work proposes a planar micromixer design comprising hybrid mixing modules of split-and-recombine units and curved channels with radial baffles. The mixing performance was evaluated numerically by solving the continuity and momentum equations along with the advection-diffusion equation in a Reynolds number range of 0.1–80. The variance of the concentration of the mixed species was considered to quantify the mixing index. The micromixer showed far better mixing performance over whole Reynolds number range than an earlier split-and-recombine micromixer. The mixer achieved mixing indices greater than 90% at Re ≥ 20 and a mixing index of 99.8% at Re = 80. The response of the mixing quality to the change of three geometrical parameters was also studied. A mixing index over 80% was achieved within 63% of the full length at Re = 20.
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spelling pubmed-69528742020-01-23 Asymmetrical Split-and-Recombine Micromixer with Baffles Raza, Wasim Kim, Kwang-Yong Micromachines (Basel) Article The present work proposes a planar micromixer design comprising hybrid mixing modules of split-and-recombine units and curved channels with radial baffles. The mixing performance was evaluated numerically by solving the continuity and momentum equations along with the advection-diffusion equation in a Reynolds number range of 0.1–80. The variance of the concentration of the mixed species was considered to quantify the mixing index. The micromixer showed far better mixing performance over whole Reynolds number range than an earlier split-and-recombine micromixer. The mixer achieved mixing indices greater than 90% at Re ≥ 20 and a mixing index of 99.8% at Re = 80. The response of the mixing quality to the change of three geometrical parameters was also studied. A mixing index over 80% was achieved within 63% of the full length at Re = 20. MDPI 2019-12-03 /pmc/articles/PMC6952874/ /pubmed/31816973 http://dx.doi.org/10.3390/mi10120844 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Raza, Wasim
Kim, Kwang-Yong
Asymmetrical Split-and-Recombine Micromixer with Baffles
title Asymmetrical Split-and-Recombine Micromixer with Baffles
title_full Asymmetrical Split-and-Recombine Micromixer with Baffles
title_fullStr Asymmetrical Split-and-Recombine Micromixer with Baffles
title_full_unstemmed Asymmetrical Split-and-Recombine Micromixer with Baffles
title_short Asymmetrical Split-and-Recombine Micromixer with Baffles
title_sort asymmetrical split-and-recombine micromixer with baffles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6952874/
https://www.ncbi.nlm.nih.gov/pubmed/31816973
http://dx.doi.org/10.3390/mi10120844
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