Electromagnetic electro-osmotic flow of the Jeffrey fluid in rectangular microchannel.
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| Title: | Electromagnetic electro-osmotic flow of the Jeffrey fluid in rectangular microchannel. |
|---|---|
| Authors: | Yu, Mengqi1 (AUTHOR), Dong, Jiayin1 (AUTHOR), Liu, Jiaofei1 (AUTHOR), Li, Kun1 (AUTHOR) jadewh@imut.edu.cn |
| Source: | Pramana: Journal of Physics. Mar2025, Vol. 99 Issue 1, p1-13. 13p. |
| Subjects: | Electro-osmosis, Separation of variables, Electromagnetic fields, Flow velocity, Fluid flow |
| Abstract: | Following a thorough analysis of the existing research on periodic electro-osmotic flow in rectangular microchannels, this paper offers a comprehensive investigation of the distinctive characteristics of electromagnetic electro-osmotic flow in Jeffery fluids, emphasising particularly on the combined impact of the intricate interplay between the electric field and electromagnetic forces. A precise analytical expression for the velocity has been successfully derived by employing the technique of variable separation. Moreover, a comprehensive analysis has been conducted utilising intricate calculations and image evaluation to delve into the implications of Hartmann number (Ha), Reynolds number (Re), relaxation time, electrokinetic width and retardation time on the distribution of flow velocity. The findings indicate that as Ha rises, the flow velocity initially gains momentum, but subsequently exhibits a gradual decline. When Re is 0.5, the speed increases by about 29% and then decreases by about 61%. When Re is 4.5, the speed increases by about 20% and then decreases by about 42%. The increase in electrokinetic width and relaxation time results in an increase in speed. When Ha is 0.5, the velocity rises about 29% by the effect of the electrokinetic width and about 730% by the effect of the relaxation time. When Ha is 6, the velocity rises by about 71% by the effect of the electrokinetic width and the velocity rises by about 100% by the effect of the relaxation time. However, an increase in the retardation time and Re will result in a decrease in the flow rate. When Ha is 0.5, the velocity decreases by 83% under the effect of retardation time and 80% under the effect of Re. When Ha is 6, the velocity decreases by 40% under the effect of retardation time and 25% under the effect of Re. It should be emphasised that the velocity distribution of Jeffrey fluid is mainly concentrated near the channel wall, especially when Ha increases, resulting in the fluid velocity tending to be relatively slow. It is particularly interesting that when Ha reaches a high level, the fluid velocity is almost no longer affected by changes in Re. In order to validate the accuracy of this study, the resulting findings were cross-checked with previous findings and these comparisons support that the conclusions of this paper are plausible. [ABSTRACT FROM AUTHOR] |
| Copyright of Pramana: Journal of Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Items | – Name: Title Label: Title Group: Ti Data: Electromagnetic electro-osmotic flow of the Jeffrey fluid in rectangular microchannel. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yu%2C+Mengqi%22">Yu, Mengqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dong%2C+Jiayin%22">Dong, Jiayin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jiaofei%22">Liu, Jiaofei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Kun%22">Li, Kun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jadewh@imut.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Pramana%3A+Journal+of+Physics%22">Pramana: Journal of Physics</searchLink>. Mar2025, Vol. 99 Issue 1, p1-13. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electro-osmosis%22">Electro-osmosis</searchLink><br /><searchLink fieldCode="DE" term="%22Separation+of+variables%22">Separation of variables</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+fields%22">Electromagnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Flow+velocity%22">Flow velocity</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+flow%22">Fluid flow</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Following a thorough analysis of the existing research on periodic electro-osmotic flow in rectangular microchannels, this paper offers a comprehensive investigation of the distinctive characteristics of electromagnetic electro-osmotic flow in Jeffery fluids, emphasising particularly on the combined impact of the intricate interplay between the electric field and electromagnetic forces. A precise analytical expression for the velocity has been successfully derived by employing the technique of variable separation. Moreover, a comprehensive analysis has been conducted utilising intricate calculations and image evaluation to delve into the implications of Hartmann number (Ha), Reynolds number (Re), relaxation time, electrokinetic width and retardation time on the distribution of flow velocity. The findings indicate that as Ha rises, the flow velocity initially gains momentum, but subsequently exhibits a gradual decline. When Re is 0.5, the speed increases by about 29% and then decreases by about 61%. When Re is 4.5, the speed increases by about 20% and then decreases by about 42%. The increase in electrokinetic width and relaxation time results in an increase in speed. When Ha is 0.5, the velocity rises about 29% by the effect of the electrokinetic width and about 730% by the effect of the relaxation time. When Ha is 6, the velocity rises by about 71% by the effect of the electrokinetic width and the velocity rises by about 100% by the effect of the relaxation time. However, an increase in the retardation time and Re will result in a decrease in the flow rate. When Ha is 0.5, the velocity decreases by 83% under the effect of retardation time and 80% under the effect of Re. When Ha is 6, the velocity decreases by 40% under the effect of retardation time and 25% under the effect of Re. It should be emphasised that the velocity distribution of Jeffrey fluid is mainly concentrated near the channel wall, especially when Ha increases, resulting in the fluid velocity tending to be relatively slow. It is particularly interesting that when Ha reaches a high level, the fluid velocity is almost no longer affected by changes in Re. In order to validate the accuracy of this study, the resulting findings were cross-checked with previous findings and these comparisons support that the conclusions of this paper are plausible. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Pramana: Journal of Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s12043-024-02868-2 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1 Subjects: – SubjectFull: Electro-osmosis Type: general – SubjectFull: Separation of variables Type: general – SubjectFull: Electromagnetic fields Type: general – SubjectFull: Flow velocity Type: general – SubjectFull: Fluid flow Type: general Titles: – TitleFull: Electromagnetic electro-osmotic flow of the Jeffrey fluid in rectangular microchannel. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yu, Mengqi – PersonEntity: Name: NameFull: Dong, Jiayin – PersonEntity: Name: NameFull: Liu, Jiaofei – PersonEntity: Name: NameFull: Li, Kun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 03044289 Numbering: – Type: volume Value: 99 – Type: issue Value: 1 Titles: – TitleFull: Pramana: Journal of Physics Type: main |
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