Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface
In this study, we discuss the development of a mixer that incorporates a moving interface formed by placing two gas–liquid free interfaces into a conventional straight-flow micromixer. We restricted the movement of the interfaces in a direction normal to the flow of the liquid, in order to...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2011-02-01
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| Series: | Journal of Fluid Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jfst/6/2/6_2_128/_pdf/-char/en |
| _version_ | 1818942649268174848 |
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| author | Takashi YAMADA Naoyuki OSATO Yuta WATANABE Naoki ONO |
| author_facet | Takashi YAMADA Naoyuki OSATO Yuta WATANABE Naoki ONO |
| author_sort | Takashi YAMADA |
| collection | DOAJ |
| description | In this study, we discuss the development of a mixer that incorporates a moving interface formed by placing two gas–liquid free interfaces into a conventional straight-flow micromixer. We restricted the movement of the interfaces in a direction normal to the flow of the liquid, in order to first promote molecular diffusion by reducing the diffusion distance, and second enhance convective diffusion caused by unsteady flow. We investigated these mixing effects and characteristics in physical experiments along with computational fluid dynamics (CFD) simulations, and compare the results. We found that the imposition of the gas–liquid free interfaces in the channel affected mixing, and that the effect of unsteady flow was small near the moving interfaces. We concluded that the acceleration of convective transport caused by the change of flow direction enhanced mixing. |
| first_indexed | 2024-12-20T07:14:47Z |
| format | Article |
| id | doaj.art-3c2c0bfe54734b3b93dcab763ff08bae |
| institution | Directory Open Access Journal |
| issn | 1880-5558 |
| language | English |
| last_indexed | 2024-12-20T07:14:47Z |
| publishDate | 2011-02-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Fluid Science and Technology |
| spelling | doaj.art-3c2c0bfe54734b3b93dcab763ff08bae2022-12-21T19:48:49ZengThe Japan Society of Mechanical EngineersJournal of Fluid Science and Technology1880-55582011-02-016212813810.1299/jfst.6.128jfstExperimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free InterfaceTakashi YAMADA0Naoyuki OSATO1Yuta WATANABE2Naoki ONO3Department of Engineering Science and Mechanics, Shibaura Institute of TechnologyDepartment of Engineering Science and Mechanics, Shibaura Institute of TechnologyDepartment of Engineering Science and Mechanics, Shibaura Institute of TechnologyDepartment of Engineering Science and Mechanics, Shibaura Institute of TechnologyIn this study, we discuss the development of a mixer that incorporates a moving interface formed by placing two gas–liquid free interfaces into a conventional straight-flow micromixer. We restricted the movement of the interfaces in a direction normal to the flow of the liquid, in order to first promote molecular diffusion by reducing the diffusion distance, and second enhance convective diffusion caused by unsteady flow. We investigated these mixing effects and characteristics in physical experiments along with computational fluid dynamics (CFD) simulations, and compare the results. We found that the imposition of the gas–liquid free interfaces in the channel affected mixing, and that the effect of unsteady flow was small near the moving interfaces. We concluded that the acceleration of convective transport caused by the change of flow direction enhanced mixing.https://www.jstage.jst.go.jp/article/jfst/6/2/6_2_128/_pdf/-char/enmicromixergas–liquid free interfacesurface tensioncomputational fluid dynamics |
| spellingShingle | Takashi YAMADA Naoyuki OSATO Yuta WATANABE Naoki ONO Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface Journal of Fluid Science and Technology micromixer gas–liquid free interface surface tension computational fluid dynamics |
| title | Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface |
| title_full | Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface |
| title_fullStr | Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface |
| title_full_unstemmed | Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface |
| title_short | Experimental and Numerical Study on Micromixing by Utilizing the Movement of Gas–Liquid Free Interface |
| title_sort | experimental and numerical study on micromixing by utilizing the movement of gas ndash liquid free interface |
| topic | micromixer gas–liquid free interface surface tension computational fluid dynamics |
| url | https://www.jstage.jst.go.jp/article/jfst/6/2/6_2_128/_pdf/-char/en |
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