Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops
The application of ferrofluids for actuation purposes is a very active research area and the development of advanced techniques in this field is of great interest. In this work the macroscopic mechanical effects in a ferrofluid emulsion associated with internal rotations of dispersed phase microdrop...
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Elsevier B.V.
2020
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ir-20.500.12258-143572020-11-26T11:43:07Z Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops Zakinyan, A. R. Закинян, А. Р. Zakinyan, A. A. Закинян, А. А. Actuation Ferrofluid emulsion Magnetic torque Microdrops deformation Rotating field Magnetic field Magnetic fluid Emulsification The application of ferrofluids for actuation purposes is a very active research area and the development of advanced techniques in this field is of great interest. In this work the macroscopic mechanical effects in a ferrofluid emulsion associated with internal rotations of dispersed phase microdrops are studied experimentally. The studied emulsion microdrops are easily deformed under the action of a rotating magnetic field due to a low interfacial tension and take the flattened shape in a plane of field rotation. The rotations of microdrops produce a macroscopic torque in a restricted volume of an emulsion. Particularly the magnetic torque induced rotations of a spherical cavity filled with a ferrofluid emulsion and a nonmagnetic sphere floating on the surface of a ferrofluid emulsion were observed. The value of the magnetic torque has been measured as a function of the magnetic field strength and rotation frequency. The magnitude of the resulting torque in ferrofluid emulsions is higher than that in pure ferrofluids of equal magnetic content. The translatory motion of a spherical cavity filled with a ferrofluid emulsion and a nonmagnetic sphere floating on the surface of a ferrofluid emulsion was observed, and the translation velocity was measured. The studied actuation mechanism can be used for intensification of delivery process in biomedical and engineering applications 2020-10-12T12:03:37Z 2020-10-12T12:03:37Z 2020 Статья Zakinyan, A.R., Zakinyan, A.A. Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops // Sensors and Actuators, A: Physical. - 2020. - Volume 314. - Номер статьи 112347 http://hdl.handle.net/20.500.12258/14357 en Sensors and Actuators, A: Physical application/pdf application/pdf Elsevier B.V. |
| institution |
СКФУ |
| collection |
Репозиторий |
| language |
English |
| topic |
Actuation Ferrofluid emulsion Magnetic torque Microdrops deformation Rotating field Magnetic field Magnetic fluid Emulsification |
| spellingShingle |
Actuation Ferrofluid emulsion Magnetic torque Microdrops deformation Rotating field Magnetic field Magnetic fluid Emulsification Zakinyan, A. R. Закинян, А. Р. Zakinyan, A. A. Закинян, А. А. Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| description |
The application of ferrofluids for actuation purposes is a very active research area and the development of advanced techniques in this field is of great interest. In this work the macroscopic mechanical effects in a ferrofluid emulsion associated with internal rotations of dispersed phase microdrops are studied experimentally. The studied emulsion microdrops are easily deformed under the action of a rotating magnetic field due to a low interfacial tension and take the flattened shape in a plane of field rotation. The rotations of microdrops produce a macroscopic torque in a restricted volume of an emulsion. Particularly the magnetic torque induced rotations of a spherical cavity filled with a ferrofluid emulsion and a nonmagnetic sphere floating on the surface of a ferrofluid emulsion were observed. The value of the magnetic torque has been measured as a function of the magnetic field strength and rotation frequency. The magnitude of the resulting torque in ferrofluid emulsions is higher than that in pure ferrofluids of equal magnetic content. The translatory motion of a spherical cavity filled with a ferrofluid emulsion and a nonmagnetic sphere floating on the surface of a ferrofluid emulsion was observed, and the translation velocity was measured. The studied actuation mechanism can be used for intensification of delivery process in biomedical and engineering applications |
| format |
Статья |
| author |
Zakinyan, A. R. Закинян, А. Р. Zakinyan, A. A. Закинян, А. А. |
| author_facet |
Zakinyan, A. R. Закинян, А. Р. Zakinyan, A. A. Закинян, А. А. |
| author_sort |
Zakinyan, A. R. |
| title |
Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| title_short |
Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| title_full |
Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| title_fullStr |
Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| title_full_unstemmed |
Rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| title_sort |
rotating field induced torque on ferrofluid emulsion with deformable dispersed phase microdrops |
| publisher |
Elsevier B.V. |
| publishDate |
2020 |
| url |
https://dspace.ncfu.ru/handle/20.500.12258/14357 |
| work_keys_str_mv |
AT zakinyanar rotatingfieldinducedtorqueonferrofluidemulsionwithdeformabledispersedphasemicrodrops AT zakinânar rotatingfieldinducedtorqueonferrofluidemulsionwithdeformabledispersedphasemicrodrops AT zakinyanaa rotatingfieldinducedtorqueonferrofluidemulsionwithdeformabledispersedphasemicrodrops AT zakinânaa rotatingfieldinducedtorqueonferrofluidemulsionwithdeformabledispersedphasemicrodrops |
| _version_ |
1760600696400379904 |