TY - JOUR
T1 - Magnetically induced spreading and pattern selection in thin ferrofluid drops
AU - Chen, Ching-Yao
AU - Wu, W. L.
AU - Miranda, José A.
PY - 2010/11/17
Y1 - 2010/11/17
N2 - We report an experimental study of a fingering pattern formation which occurs during the spreading of an immiscible thin ferrofluid drop subjected to a radial magnetic field. Our results indicate that this ferrohydrodynamic system works as a magnetic analog of conventional spin coating, where centrifugal driving is replaced with a magnetic body force induced by the radial applied field. In this context, a magnetically tunable pattern selection mechanism is proposed in which the shape and number of the arising fingered structures can be properly controlled.
AB - We report an experimental study of a fingering pattern formation which occurs during the spreading of an immiscible thin ferrofluid drop subjected to a radial magnetic field. Our results indicate that this ferrohydrodynamic system works as a magnetic analog of conventional spin coating, where centrifugal driving is replaced with a magnetic body force induced by the radial applied field. In this context, a magnetically tunable pattern selection mechanism is proposed in which the shape and number of the arising fingered structures can be properly controlled.
UR - http://www.scopus.com/inward/record.url?scp=78651377859&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.82.056321
DO - 10.1103/PhysRevE.82.056321
M3 - Article
AN - SCOPUS:78651377859
SN - 1539-3755
VL - 82
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 5
M1 - 056321
ER -