Nonlinear diffusive mixing in microchannels : theory and experiments
Effective mixing is an important task in microfluidics for chemical and biochemical applications. Due to the small size and consequently the low Reynolds number, mixing in microchannels relies on diffusive transport. This paper discusses an analytical model of diffusive mixing in microchannels. The...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/100382 http://hdl.handle.net/10220/24099 |
| _version_ | 1811682350401060864 |
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| author | Wu, Zhigang Nguyen, Nam-Trung Huang, Xiaoyang |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Wu, Zhigang Nguyen, Nam-Trung Huang, Xiaoyang |
| author_sort | Wu, Zhigang |
| collection | NTU |
| description | Effective mixing is an important task in microfluidics for chemical and biochemical applications. Due to the small size and consequently the low Reynolds number, mixing in microchannels relies on diffusive transport. This paper discusses an analytical model of diffusive mixing in microchannels. The dimensionless analysis generalizes the solution for different channel sizes and different diffusion coefficients. The Peclet number is the only parameter of the model. Furthermore, the paper presents the result of a nonlinear model of diffusive mixing in microchannels. The nonlinear model considers the dependence of the diffusion coefficient on the concentration. A simple micromixer was fabricated using a lamination technique. Measurement results with the micromixer verify the analytical results. |
| first_indexed | 2024-10-01T03:55:27Z |
| format | Journal Article |
| id | ntu-10356/100382 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:55:27Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1003822020-03-07T13:22:20Z Nonlinear diffusive mixing in microchannels : theory and experiments Wu, Zhigang Nguyen, Nam-Trung Huang, Xiaoyang School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Microelectronics and semiconductor materials Effective mixing is an important task in microfluidics for chemical and biochemical applications. Due to the small size and consequently the low Reynolds number, mixing in microchannels relies on diffusive transport. This paper discusses an analytical model of diffusive mixing in microchannels. The dimensionless analysis generalizes the solution for different channel sizes and different diffusion coefficients. The Peclet number is the only parameter of the model. Furthermore, the paper presents the result of a nonlinear model of diffusive mixing in microchannels. The nonlinear model considers the dependence of the diffusion coefficient on the concentration. A simple micromixer was fabricated using a lamination technique. Measurement results with the micromixer verify the analytical results. 2014-10-21T08:45:50Z 2019-12-06T20:21:27Z 2014-10-21T08:45:50Z 2019-12-06T20:21:27Z 2004 2004 Journal Article Wu, Z., Nguyen, N.-T., & Huang, X. (2004). Nonlinear diffusive mixing in microchannels : theory and experiments. Journal of micromechanics and microengineering, 14(4), 604-611. https://hdl.handle.net/10356/100382 http://hdl.handle.net/10220/24099 10.1088/0960-1317/14/4/022 86950 en Journal of micromechanics and microengineering © 2004 IOP Publishing Ltd. 8 p. |
| spellingShingle | DRNTU::Engineering::Materials::Microelectronics and semiconductor materials Wu, Zhigang Nguyen, Nam-Trung Huang, Xiaoyang Nonlinear diffusive mixing in microchannels : theory and experiments |
| title | Nonlinear diffusive mixing in microchannels : theory and experiments |
| title_full | Nonlinear diffusive mixing in microchannels : theory and experiments |
| title_fullStr | Nonlinear diffusive mixing in microchannels : theory and experiments |
| title_full_unstemmed | Nonlinear diffusive mixing in microchannels : theory and experiments |
| title_short | Nonlinear diffusive mixing in microchannels : theory and experiments |
| title_sort | nonlinear diffusive mixing in microchannels theory and experiments |
| topic | DRNTU::Engineering::Materials::Microelectronics and semiconductor materials |
| url | https://hdl.handle.net/10356/100382 http://hdl.handle.net/10220/24099 |
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