Thermocapillary actuation of droplet in a planar microchannel
A study on thermocapillary actuation of liquid droplet in a planar microchannel has been carried out by both theoretical modeling and experimental characterization. The driving temperature gradients are provided by four heaters at the channel boundaries. In the modeling, the temperature distribution...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106146 http://hdl.handle.net/10220/23941 http://dx.doi.org/10.1007/s10404-007-0235-7 |
| _version_ | 1811695763426639872 |
|---|---|
| author | Jiao, Zhenjun Huang, Xiaoyang Nguyen, Nam-Trung Abgrall, Patrick |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Jiao, Zhenjun Huang, Xiaoyang Nguyen, Nam-Trung Abgrall, Patrick |
| author_sort | Jiao, Zhenjun |
| collection | NTU |
| description | A study on thermocapillary actuation of liquid droplet in a planar microchannel has been carried out by both theoretical modeling and experimental characterization. The driving temperature gradients are provided by four heaters at the channel boundaries. In the modeling, the temperature distributions corresponding to transient actuation are calculated, and are coupled to the droplet through the surface tensions which drive the droplet to move inside the channel. The droplet trajectories and final positions are predicted, and are compared with the experimental observations, in which a silicon oil droplet was actuated inside a 10 mm × 10 mm planar channel with four heater fabricated on the substrate plate. The results show that the droplet can be positioned anywhere in the channel, determined by a heating code related to the heating strengths. Qualitative agreement between the modeling results and experimental data, in terms of temperature distributions, droplet trajectories and positions, has been obtained. |
| first_indexed | 2024-10-01T07:28:38Z |
| format | Journal Article |
| id | ntu-10356/106146 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:28:38Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1061462019-12-06T22:05:27Z Thermocapillary actuation of droplet in a planar microchannel Jiao, Zhenjun Huang, Xiaoyang Nguyen, Nam-Trung Abgrall, Patrick School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Fluid mechanics A study on thermocapillary actuation of liquid droplet in a planar microchannel has been carried out by both theoretical modeling and experimental characterization. The driving temperature gradients are provided by four heaters at the channel boundaries. In the modeling, the temperature distributions corresponding to transient actuation are calculated, and are coupled to the droplet through the surface tensions which drive the droplet to move inside the channel. The droplet trajectories and final positions are predicted, and are compared with the experimental observations, in which a silicon oil droplet was actuated inside a 10 mm × 10 mm planar channel with four heater fabricated on the substrate plate. The results show that the droplet can be positioned anywhere in the channel, determined by a heating code related to the heating strengths. Qualitative agreement between the modeling results and experimental data, in terms of temperature distributions, droplet trajectories and positions, has been obtained. 2014-10-01T05:10:47Z 2019-12-06T22:05:27Z 2014-10-01T05:10:47Z 2019-12-06T22:05:27Z 2007 2007 Journal Article Jiao, Z., Huang, X., Nguyen, N. T.,& Abgrall, P. (2008). Thermocapillary actuation of droplet in a planar microchannel. Microfluidics and nanofluidics, 5(2), 205-214. 1613-4990 https://hdl.handle.net/10356/106146 http://hdl.handle.net/10220/23941 http://dx.doi.org/10.1007/s10404-007-0235-7 98000 en Microfluidics and nanofluidics © 2007 Springer-Verlag. 9 p. |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Fluid mechanics Jiao, Zhenjun Huang, Xiaoyang Nguyen, Nam-Trung Abgrall, Patrick Thermocapillary actuation of droplet in a planar microchannel |
| title | Thermocapillary actuation of droplet in a planar microchannel |
| title_full | Thermocapillary actuation of droplet in a planar microchannel |
| title_fullStr | Thermocapillary actuation of droplet in a planar microchannel |
| title_full_unstemmed | Thermocapillary actuation of droplet in a planar microchannel |
| title_short | Thermocapillary actuation of droplet in a planar microchannel |
| title_sort | thermocapillary actuation of droplet in a planar microchannel |
| topic | DRNTU::Engineering::Mechanical engineering::Fluid mechanics |
| url | https://hdl.handle.net/10356/106146 http://hdl.handle.net/10220/23941 http://dx.doi.org/10.1007/s10404-007-0235-7 |
| work_keys_str_mv | AT jiaozhenjun thermocapillaryactuationofdropletinaplanarmicrochannel AT huangxiaoyang thermocapillaryactuationofdropletinaplanarmicrochannel AT nguyennamtrung thermocapillaryactuationofdropletinaplanarmicrochannel AT abgrallpatrick thermocapillaryactuationofdropletinaplanarmicrochannel |