Thermo-magneto-convective instabilities in a vertical layer of ferro-magnetic fluid

Suslov, Sergey A. and Bozhko, Alexandra A. and Putin, Gennady F. (2008) Thermo-magneto-convective instabilities in a vertical layer of ferro-magnetic fluid. In: XXXVI International Conference Advanced Problems in Mechanics, 6-10 Jul 2008, Repino, Russia.

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We study convection in a vertical layer of ferro-magnetic fluid heated from the side and subject to a transverse magnetic field. It is found that the subsequent fluid motion is caused by interacting thermo-gravitational and thermo-magnetic mechanisms. Our experiments and computations show that the excitation of
magneto-convection leads to the formation of vertically aligned stationary rolls, while gravitational convection results in horizontal rolls corresponding to a pair of counter-propagating thermal waves. The interaction of these instability modes leads to a wide spectrum of experimentally observed flow patterns including stationary
rolls and standing waves of various spatial orientations. A
comprehensive stability map is computed and compared with experimental flow visualisations. Disturbance energy is analysed to achieve a deeper insight into the physical mechanisms driving the fluid motion.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Official reference: Suslov, S.A., Bozhko, A.A. and Putin, G.F., Thermo-magneto-convective instabilities in a vertical layer of a ferro-magnetic fluid, Proceedings of the APM2008: XXXVI Summer School on 'Advanced Problems in Mechanics', pp.~644--651. St.Petersburg (Repino), Russia. 6--10 July, 2008.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Maths and Computing
Date Deposited: 27 Dec 2009 09:19
Last Modified: 02 Jul 2013 23:06
Uncontrolled Keywords: ferro-colloid, magneto-convection
Fields of Research : 02 Physical Sciences > 0203 Classical Physics > 020303 Fluid Physics

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