Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field
This paper reports experimental and numerical results of the deformation of a ferrofluid droplet on a superhydrophobic surface under the effect of a uniform magnetic field. A water-based ferrofluid droplet surrounded by immiscible mineral oil was stretched by...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/94551 http://hdl.handle.net/10220/7777 |
| _version_ | 1811696891223605248 |
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| author | Zhu, Gui-Ping Nguyen, Nam-Trung Huang, Xiaoyang Ramanujan, Raju V. |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Zhu, Gui-Ping Nguyen, Nam-Trung Huang, Xiaoyang Ramanujan, Raju V. |
| author_sort | Zhu, Gui-Ping |
| collection | NTU |
| description | This paper reports experimental and numerical results of the
deformation of a ferrofluid droplet on a superhydrophobic surface under
the effect of a uniform magnetic field. A water-based ferrofluid droplet
surrounded by immiscible mineral oil was stretched by a magnetic field
parallel to the substrate surface. The results show that an increasing flux
density increases the droplet width and decreases the droplet height. A
numerical model was established to study the equilibrium shape of the
ferrofluid droplet. The governing equations for physical fields, including
the magnetic field, are solved by the finite volume method. The interface
between the two immiscible liquids was tracked by the level-set method. Nonlinear magnetization was implemented in the model.
Comparison between experimental and numerical results shows that the numerical model can predict well the nonlinear
deformation of a ferrofluid droplet in a uniform magnetic field. |
| first_indexed | 2024-10-01T07:46:34Z |
| format | Journal Article |
| id | ntu-10356/94551 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:46:34Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/945512023-03-04T17:13:09Z Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field Zhu, Gui-Ping Nguyen, Nam-Trung Huang, Xiaoyang Ramanujan, Raju V. School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering This paper reports experimental and numerical results of the deformation of a ferrofluid droplet on a superhydrophobic surface under the effect of a uniform magnetic field. A water-based ferrofluid droplet surrounded by immiscible mineral oil was stretched by a magnetic field parallel to the substrate surface. The results show that an increasing flux density increases the droplet width and decreases the droplet height. A numerical model was established to study the equilibrium shape of the ferrofluid droplet. The governing equations for physical fields, including the magnetic field, are solved by the finite volume method. The interface between the two immiscible liquids was tracked by the level-set method. Nonlinear magnetization was implemented in the model. Comparison between experimental and numerical results shows that the numerical model can predict well the nonlinear deformation of a ferrofluid droplet in a uniform magnetic field. Accepted version 2012-04-13T00:47:03Z 2019-12-06T18:58:01Z 2012-04-13T00:47:03Z 2019-12-06T18:58:01Z 2011 2011 Journal Article Zhu, G. P., Nguyen, N. T., Ramanujan, R. V. & Huang, X. Y. (2011) Nonlinear Deformation of a Ferrofluid Droplet in a Uniform Magnetic Field. Langmuir, 27 (24), 14834–14841. https://hdl.handle.net/10356/94551 http://hdl.handle.net/10220/7777 10.1021/la203931q 163229 en Langmuir © 2011 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Langmuir, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1021/la203931q]. 22 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Zhu, Gui-Ping Nguyen, Nam-Trung Huang, Xiaoyang Ramanujan, Raju V. Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| title | Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| title_full | Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| title_fullStr | Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| title_full_unstemmed | Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| title_short | Nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| title_sort | nonlinear deformation of a ferrofluid droplet in a uniform magnetic field |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/94551 http://hdl.handle.net/10220/7777 |
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