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A note on the similarity between the normal-field instability in ferrofluids and the thermocapillary instability

Published online by Cambridge University Press:  04 July 2007

SANG W. JOO
SANG W. JOO*
Affiliation:
School of Mechanical Engineering, Yeungnam University, Gyongsan 712-749, Korea
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Abstract

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A striking resemblance between the normal-field instability in ferromagnetic fluids and the interfacial mode of the thermocapillary instability in viscous fluids is presented. A nonlinear evolution equation describing the dynamics of the free surface for a ferrofluid layer subject to a uniform normal magnetic field is derived, and compared to that for a thin viscous layer heated from below. Their similarity predicts the possibility of mutual nonlinear stability control.

Type
Papers
Information
Journal of Fluid Mechanics , Volume 583 , 25 July 2007 , pp. 459 - 464
Copyright
Copyright © Cambridge University Press 2007

References

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