The behavior of a magnetic filament in flow under the influence of an external magnetic field
- Author(s)
- Daniel Lüsebrink, Joan J. Cerdà, Pedro A. Sánchez, Sofia Kantorovich, Tomás Sintes
- Abstract
We present an extensive numerical study of the behaviour of a filament made of ferromagnetic colloidal particles subjected to the simultaneous action of a fluid flow and a stationary external magnetic field perpendicular to the flow lines. We found that in the presence of a shear flow, the tumbling motion observed at zero field is strongly inhibited when the external magnetic field is applied. The field is able to stabilise the filament with a well defined degree of alignment that depends on the balance between hydrodynamic and magnetic torques. In addition, for a Poiseuille flow, it has been found that the initial position has a long lasting influence on the behaviour of the magnetic filament when the external field is applied.
- Organisation(s)
- Computational and Soft Matter Physics
- External organisation(s)
- University of the Balearic Islands, University of British Columbia (UBC)
- Journal
- Journal of Chemical Physics
- Volume
- 145
- No. of pages
- 12
- ISSN
- 0021-9606
- DOI
- https://doi.org/10.1063/1.4971860
- Publication date
- 2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103015 Condensed matter, 103032 Fluid mechanics, 103006 Chemical physics
- Keywords
- ASJC Scopus subject areas
- General Physics and Astronomy, Physical and Theoretical Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/f5bdec5e-d19f-4360-8459-74f265648361