Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization

Micromixers are crucial parts of microfluidic systems when it comes to efficiency and precision, as mixing is the central process in most relevant applications, including medical diagnosis, chemical production, and drug discovery. In view of the importance of improving the mixing quality, for the fi...

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Main Authors: Reza Kalantar Feeoj, Sayed Masoud Alavi Eshkaftaki, Iman Kazemi Asfeh, Mehdi Jahangiri
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:International Journal of Chemical Engineering
Online Access:http://dx.doi.org/10.1155/2022/9957189
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author Reza Kalantar Feeoj
Sayed Masoud Alavi Eshkaftaki
Iman Kazemi Asfeh
Mehdi Jahangiri
author_facet Reza Kalantar Feeoj
Sayed Masoud Alavi Eshkaftaki
Iman Kazemi Asfeh
Mehdi Jahangiri
author_sort Reza Kalantar Feeoj
collection DOAJ
description Micromixers are crucial parts of microfluidic systems when it comes to efficiency and precision, as mixing is the central process in most relevant applications, including medical diagnosis, chemical production, and drug discovery. In view of the importance of improving the mixing quality, for the first time, the present work investigates the simultaneous effects of mixing chamber geometry (circular, hexagonal, and octagonal), electric field frequency (5, 7, 10, and 15 Hz), inlet velocity (0.1-0.2 mm·s−1), and phase difference (0-π) on the flow inside an electroosmotic micromixer using the finite-element tool COMSOL Multiphysics 5.4 to optimize the process and achieve homogeneous mixing. The flow-field, concentration-field, and electric-field equations were coupled and solved simultaneously. The results of this research indicated that at a given inlet velocity and a specific frequency range, as frequency increases, more mixing occurs in a smaller chamber, and as the inlet velocity increases, more mixing occurs in a smaller chamber at a higher frequency. Moreover, the highest mixing level (98.16%) was obtained with a 0.1 mm·s−1 inlet velocity, 10 Hz frequency, and π/2 phase difference in a hexagonal chamber.
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institution Kabale University
issn 1687-8078
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publishDate 2022-01-01
publisher Wiley
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series International Journal of Chemical Engineering
spelling doaj-art-3dde32e8edbd4475b8e8f791fb6feb192025-02-03T06:08:40ZengWileyInternational Journal of Chemical Engineering1687-80782022-01-01202210.1155/2022/9957189Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for OptimizationReza Kalantar Feeoj0Sayed Masoud Alavi Eshkaftaki1Iman Kazemi Asfeh2Mehdi Jahangiri3Department of Mechanical EngineeringDepartment of Mechanical EngineeringDepartment of Mechanical EngineeringEnergy Research CenterMicromixers are crucial parts of microfluidic systems when it comes to efficiency and precision, as mixing is the central process in most relevant applications, including medical diagnosis, chemical production, and drug discovery. In view of the importance of improving the mixing quality, for the first time, the present work investigates the simultaneous effects of mixing chamber geometry (circular, hexagonal, and octagonal), electric field frequency (5, 7, 10, and 15 Hz), inlet velocity (0.1-0.2 mm·s−1), and phase difference (0-π) on the flow inside an electroosmotic micromixer using the finite-element tool COMSOL Multiphysics 5.4 to optimize the process and achieve homogeneous mixing. The flow-field, concentration-field, and electric-field equations were coupled and solved simultaneously. The results of this research indicated that at a given inlet velocity and a specific frequency range, as frequency increases, more mixing occurs in a smaller chamber, and as the inlet velocity increases, more mixing occurs in a smaller chamber at a higher frequency. Moreover, the highest mixing level (98.16%) was obtained with a 0.1 mm·s−1 inlet velocity, 10 Hz frequency, and π/2 phase difference in a hexagonal chamber.http://dx.doi.org/10.1155/2022/9957189
spellingShingle Reza Kalantar Feeoj
Sayed Masoud Alavi Eshkaftaki
Iman Kazemi Asfeh
Mehdi Jahangiri
Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization
International Journal of Chemical Engineering
title Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization
title_full Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization
title_fullStr Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization
title_full_unstemmed Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization
title_short Finite-Element Simulation of Electroosmotic Mixing: A Study of the Simultaneous Effects of Working Parameters for Optimization
title_sort finite element simulation of electroosmotic mixing a study of the simultaneous effects of working parameters for optimization
url http://dx.doi.org/10.1155/2022/9957189
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