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Shape transformations in rotating ferrofluid drops | | K.I.Morozov
; A.Engel
; A.V.Lebedev
; | | Date: |
23 Nov 2001 | | Subject: | Pattern Formation and Solitons; Materials Science; Fluid Dynamics | nlin.PS cond-mat.mtrl-sci physics.flu-dyn | | Abstract: | Floating drops of magnetic fluid can be brought into rotation by applying a rotating magnetic field. We report theoretical and experimental results on the transition from a spheroid equilibrium shape to non-axissymmetrical three-axes ellipsoids at certain values of the external field strength. The transitions are continuous for small values of the magnetic susceptibility and show hysteresis for larger ones. In the non-axissymmetric shape the rotational motion of the drop consists of a vortical flow inside the drop combined with a slow rotation of the shape. Nonlinear magnetization laws are crucial to obtain quantitative agreement between theory and experiment. | | Source: | arXiv, nlin.PS/0111054 | | Services: | Forum | Review | PDF | Favorites | |
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