One-dimensional actuation of a ferrofluid droplet by planar microcoils
This paper discusses the simulation of a device for actuation of a ferrofluid droplet using planar microcoils. The device with two pairs of planar microcoils was designed and fabricated on a double-sided printed circuit board (PCB). Each pair is placed on each side of the PCB. The coils on the botto...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2012
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| Online Access: | https://hdl.handle.net/10356/94548 http://hdl.handle.net/10220/7855 |
| _version_ | 1826118398542610432 |
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| author | Beyzavi, Ali Nguyen, Nam-Trung |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Beyzavi, Ali Nguyen, Nam-Trung |
| author_sort | Beyzavi, Ali |
| collection | NTU |
| description | This paper discusses the simulation of a device for actuation of a ferrofluid droplet using planar microcoils. The device with two pairs of planar microcoils was designed and fabricated on a double-sided printed circuit board (PCB). Each pair is placed on each side of the PCB. The coils on the bottom actuate the droplet along the line connecting their centres. The coils on the top create a virtual channel to confine the motion of the droplet along a straight line. The paper first formulates the model of the magnetic field of the coils. With the modelled magnetic field, the corresponding forces acting on the droplet were calculated. The equation of the motion of a ferrofluid droplet immersed in silicone oil is solved numerically. The influence of different parameters such as driving current, droplet diameter and viscosity of the carrier fluid is investigated. Theoretical and experimental results agree well quantitatively and qualitatively. Both theoretical and experimental results show that a higher magnetic field, a lower oil viscosity and a bigger droplet size will increase the peak velocity of the droplet. |
| first_indexed | 2024-10-01T04:43:06Z |
| format | Journal Article |
| id | ntu-10356/94548 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:43:06Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/945482023-03-04T17:18:41Z One-dimensional actuation of a ferrofluid droplet by planar microcoils Beyzavi, Ali Nguyen, Nam-Trung School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering This paper discusses the simulation of a device for actuation of a ferrofluid droplet using planar microcoils. The device with two pairs of planar microcoils was designed and fabricated on a double-sided printed circuit board (PCB). Each pair is placed on each side of the PCB. The coils on the bottom actuate the droplet along the line connecting their centres. The coils on the top create a virtual channel to confine the motion of the droplet along a straight line. The paper first formulates the model of the magnetic field of the coils. With the modelled magnetic field, the corresponding forces acting on the droplet were calculated. The equation of the motion of a ferrofluid droplet immersed in silicone oil is solved numerically. The influence of different parameters such as driving current, droplet diameter and viscosity of the carrier fluid is investigated. Theoretical and experimental results agree well quantitatively and qualitatively. Both theoretical and experimental results show that a higher magnetic field, a lower oil viscosity and a bigger droplet size will increase the peak velocity of the droplet. Accepted version 2012-05-11T03:40:20Z 2019-12-06T18:57:59Z 2012-05-11T03:40:20Z 2019-12-06T18:57:59Z 2009 2009 Journal Article Beyzavi, A., & Nguyen, N.T. (2009). One-dimensional actuation of a ferrofluid droplet by planar microcoils. Journal of Physics D: Applied Physics, 42(1). https://hdl.handle.net/10356/94548 http://hdl.handle.net/10220/7855 10.1088/0022-3727/42/1/015004 140767 en Journal of physics D: applied physics © 2009 IOP Publishing Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Physics D-Applied Physics, IOP Publishing Ltd. 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.ezlibproxy1.ntu.edu.sg/10.1088/0022-3727/42/1/015004] 14 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Beyzavi, Ali Nguyen, Nam-Trung One-dimensional actuation of a ferrofluid droplet by planar microcoils |
| title | One-dimensional actuation of a ferrofluid droplet by planar microcoils |
| title_full | One-dimensional actuation of a ferrofluid droplet by planar microcoils |
| title_fullStr | One-dimensional actuation of a ferrofluid droplet by planar microcoils |
| title_full_unstemmed | One-dimensional actuation of a ferrofluid droplet by planar microcoils |
| title_short | One-dimensional actuation of a ferrofluid droplet by planar microcoils |
| title_sort | one dimensional actuation of a ferrofluid droplet by planar microcoils |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/94548 http://hdl.handle.net/10220/7855 |
| work_keys_str_mv | AT beyzaviali onedimensionalactuationofaferrofluiddropletbyplanarmicrocoils AT nguyennamtrung onedimensionalactuationofaferrofluiddropletbyplanarmicrocoils |