A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis

A numerical investigation of the mixing performance and fluid flow in a new split and recombine (SAR) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="nor...

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Autores principales:	Md. Readul Mahmud, Shakhawat Hossain, Jin-Hyuk Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	CFD microfluidic micromixer mixing effectiveness pressure drop SAR Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/799bb8ce944d4bacb05849b04fc49387
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spelling	oai:doaj.org-article:799bb8ce944d4bacb05849b04fc493872021-11-25T18:50:30ZA SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis10.3390/pr91119262227-9717https://doaj.org/article/799bb8ce944d4bacb05849b04fc493872021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1926https://doaj.org/toc/2227-9717A numerical investigation of the mixing performance and fluid flow in a new split and recombine (SAR) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="normal">Y</mi><mo>−</mo><mi mathvariant="normal">U</mi></mrow></mfenced></mrow></semantics></math></inline-formula><i><sub>β</sub></i> micromixer is presented in this work. A parameter called connecting angle βis varied from 0° to 90° to analyze the effect on the SAR process and mixing performance. Thenumerical data shows that the SAR process strongly depends on the connecting angle (<i>β</i>) and maximum efficiency (93%) can be achieved when the value of β is 45°. The <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="normal">Y</mi><mo>−</mo><mi mathvariant="normal">U</mi></mrow></mfenced></mrow></semantics></math></inline-formula><sub>45°</sub> the mixer also offers higher efficiency and lower pressure drop than a known SAR ‘<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><mo>−</mo><mi>C</mi></mrow></semantics></math></inline-formula>’ mixer irrespective of Reynolds numbers. The split and recombine process, the influence of secondary flow, and pressure drop characteristics at various Reynolds numbers are also studied. In addition, mixing effectiveness is also computed, and among all examined mixers, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="normal">Y</mi><mo>−</mo><mi mathvariant="normal">U</mi></mrow></mfenced></mrow></semantics></math></inline-formula><sub>45°</sub> is by far the best performing one.Md. Readul MahmudShakhawat HossainJin-Hyuk KimMDPI AGarticleCFDmicrofluidicmicromixermixing effectivenesspressure dropSARChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1926, p 1926 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	CFD microfluidic micromixer mixing effectiveness pressure drop SAR Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	CFD microfluidic micromixer mixing effectiveness pressure drop SAR Chemical technology TP1-1185 Chemistry QD1-999 Md. Readul Mahmud Shakhawat Hossain Jin-Hyuk Kim A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis
description	A numerical investigation of the mixing performance and fluid flow in a new split and recombine (SAR) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="normal">Y</mi><mo>−</mo><mi mathvariant="normal">U</mi></mrow></mfenced></mrow></semantics></math></inline-formula><i><sub>β</sub></i> micromixer is presented in this work. A parameter called connecting angle βis varied from 0° to 90° to analyze the effect on the SAR process and mixing performance. Thenumerical data shows that the SAR process strongly depends on the connecting angle (<i>β</i>) and maximum efficiency (93%) can be achieved when the value of β is 45°. The <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="normal">Y</mi><mo>−</mo><mi mathvariant="normal">U</mi></mrow></mfenced></mrow></semantics></math></inline-formula><sub>45°</sub> the mixer also offers higher efficiency and lower pressure drop than a known SAR ‘<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><mo>−</mo><mi>C</mi></mrow></semantics></math></inline-formula>’ mixer irrespective of Reynolds numbers. The split and recombine process, the influence of secondary flow, and pressure drop characteristics at various Reynolds numbers are also studied. In addition, mixing effectiveness is also computed, and among all examined mixers, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfenced><mrow><mi mathvariant="normal">Y</mi><mo>−</mo><mi mathvariant="normal">U</mi></mrow></mfenced></mrow></semantics></math></inline-formula><sub>45°</sub> is by far the best performing one.
format	article
author	Md. Readul Mahmud Shakhawat Hossain Jin-Hyuk Kim
author_facet	Md. Readul Mahmud Shakhawat Hossain Jin-Hyuk Kim
author_sort	Md. Readul Mahmud
title	A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis
title_short	A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis
title_full	A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis
title_fullStr	A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis
title_full_unstemmed	A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis
title_sort	sar micromixer for water-water mixing: design, optimization, and analysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/799bb8ce944d4bacb05849b04fc49387
work_keys_str_mv	AT mdreadulmahmud asarmicromixerforwaterwatermixingdesignoptimizationandanalysis AT shakhawathossain asarmicromixerforwaterwatermixingdesignoptimizationandanalysis AT jinhyukkim asarmicromixerforwaterwatermixingdesignoptimizationandanalysis AT mdreadulmahmud sarmicromixerforwaterwatermixingdesignoptimizationandanalysis AT shakhawathossain sarmicromixerforwaterwatermixingdesignoptimizationandanalysis AT jinhyukkim sarmicromixerforwaterwatermixingdesignoptimizationandanalysis
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A SAR Micromixer for Water-Water Mixing: Design, Optimization, and Analysis

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