Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis
We report on our investigation of a low Reynolds number non-equilibrium electrokinetic flow in a micro/nanochannel platform. Non-equilibrium electrokinetic phenomena include so-called concentration polarization in a moderate electric field and vortex formation in a high electric field. We conducted...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-06-01
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| Series: | Micromachines |
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| Online Access: | http://www.mdpi.com/2072-666X/7/7/109 |
| _version_ | 1818880282517831680 |
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| author | Seung Jun Lee Tae-Joon Jeon Sun Min Kim Daejoong Kim |
| author_facet | Seung Jun Lee Tae-Joon Jeon Sun Min Kim Daejoong Kim |
| author_sort | Seung Jun Lee |
| collection | DOAJ |
| description | We report on our investigation of a low Reynolds number non-equilibrium electrokinetic flow in a micro/nanochannel platform. Non-equilibrium electrokinetic phenomena include so-called concentration polarization in a moderate electric field and vortex formation in a high electric field. We conducted a spectral analysis of non-equilibrium electrokinetic vortices at a micro/nanochannel interface. We found that periodic vortices are formed while the frequency varies with the applied voltages and solution concentrations. At a frequency as high as 60 Hz, vortex generation was obtained with the strongest electric field and the lowest concentration. The power spectra show increasing frequency with increasing voltage or decreasing concentration. We expect that our spectral analysis results will be useful for micromixer developers in the micromachine research field. |
| first_indexed | 2024-12-19T14:43:30Z |
| format | Article |
| id | doaj.art-18f630647fff4cff8313488e9c73a541 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-12-19T14:43:30Z |
| publishDate | 2016-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-18f630647fff4cff8313488e9c73a5412022-12-21T20:17:00ZengMDPI AGMicromachines2072-666X2016-06-017710910.3390/mi7070109mi7070109Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral AnalysisSeung Jun Lee0Tae-Joon Jeon1Sun Min Kim2Daejoong Kim3Department of Mechanical Engineering, Sogang University, Seoul 04107, KoreaDepartment of Biological Engineering, Inha University, Incheon 22212, KoreaDepartment of Mechanical Engineering, Inha University, Incheon 22212, KoreaDepartment of Mechanical Engineering, Sogang University, Seoul 04107, KoreaWe report on our investigation of a low Reynolds number non-equilibrium electrokinetic flow in a micro/nanochannel platform. Non-equilibrium electrokinetic phenomena include so-called concentration polarization in a moderate electric field and vortex formation in a high electric field. We conducted a spectral analysis of non-equilibrium electrokinetic vortices at a micro/nanochannel interface. We found that periodic vortices are formed while the frequency varies with the applied voltages and solution concentrations. At a frequency as high as 60 Hz, vortex generation was obtained with the strongest electric field and the lowest concentration. The power spectra show increasing frequency with increasing voltage or decreasing concentration. We expect that our spectral analysis results will be useful for micromixer developers in the micromachine research field.http://www.mdpi.com/2072-666X/7/7/109Vortex generationspectral analysisconcentration polarizationmicro/nanochannelmicromixerelectrokinetics |
| spellingShingle | Seung Jun Lee Tae-Joon Jeon Sun Min Kim Daejoong Kim Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis Micromachines Vortex generation spectral analysis concentration polarization micro/nanochannel micromixer electrokinetics |
| title | Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis |
| title_full | Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis |
| title_fullStr | Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis |
| title_full_unstemmed | Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis |
| title_short | Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis |
| title_sort | quantification of vortex generation due to non equilibrium electrokinetics at the micro nanochannel interface spectral analysis |
| topic | Vortex generation spectral analysis concentration polarization micro/nanochannel micromixer electrokinetics |
| url | http://www.mdpi.com/2072-666X/7/7/109 |
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