Nonlinear Rayleigh–Taylor instability of two superposed magnetic fluids under parallel rotation and a normal magnetic field

The Rayleigh–Taylor instability (RTI) of a ferrofluid has been the subject of recent research, because of its implications on the stability of stellar and planetary interiors. This paper analyzes the effects of rotation and magnetic field on nonlinear RTI of two superposed ferrofluids. It is conside...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-07, Vol.314 (2), p.135-139
Main Authors: Anjali Devi, S.P., Hemamalini, P.T.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Ferrofluids
Magnetic liquids
Magnetic properties and materials
Nonlinear
Normal magnetic field
Physics
Rayleigh–Taylor instability
Rotation
Studies of specific magnetic materials
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Summary:The Rayleigh–Taylor instability (RTI) of a ferrofluid has been the subject of recent research, because of its implications on the stability of stellar and planetary interiors. This paper analyzes the effects of rotation and magnetic field on nonlinear RTI of two superposed ferrofluids. It is considered that the system is subjected to uniform parallel rotation and normal magnetic field. Surface tension acts at the interface. The method of multiple scales is utilized to obtain the solutions and dispersion relations are obtained for the nonlinear problem of RTI of magnetic fluids. Finally the stability of the problem is discussed.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.12.024