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Title

The behavior of a magnetic filament in flow under the influence of an external magnetic field

AuthorsLüsebrink, Daniel; Cerdà, Joan J. CSIC ORCID; Sánchez, Pedro A. CSIC ORCID; Kantorovich, Sofia; Sintes, Tomàs CSIC ORCID
Issue Date15-Dec-2016
PublisherAmerican Institute of Physics
CitationJournal of Chemical Physics 145(23): 234902 (2016)
AbstractWe 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.
Publisher version (URL)http://doi.org/10.1063/1.4971860
URIhttp://hdl.handle.net/10261/157220
DOI10.1063/1.4971860
ISSN0021-9606
E-ISSN1089-7690
Appears in Collections:(IFISC) Artículos

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