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

Paper

Suslov, Sergey A., Bozhko, Alexandra A. and Putin, Gennady F.. 2008. "Thermo-magneto-convective instabilities in a vertical layer of ferro-magnetic fluid." Indeitsev, Dmitry A. (ed.) 36th International Conference Advanced Problems in Mechanics. Repino, Russia 06 - 10 Jul 2008 St Petersburg, Russia.
Paper/Presentation Title

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

Presentation TypePaper
AuthorsSuslov, Sergey A. (Author), Bozhko, Alexandra A. (Author) and Putin, Gennady F. (Author)
EditorsIndeitsev, Dmitry A.
Journal or Proceedings TitleProceedings of the XXXVI Summer School and Conference Advanced Problems in Mechanics
Number of Pages8
Year2008
Place of PublicationSt Petersburg, Russia
ISBN9785913390295
Web Address (URL) of Paperhttp://www.apm-conf.spb.ru/index.php
Conference/Event36th International Conference Advanced Problems in Mechanics
Event Details
36th International Conference Advanced Problems in Mechanics
Event Date
06 to end of 10 Jul 2008
Event Location
Repino, Russia
Abstract

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.

Keywordsferro-colloid, magneto-convection
ANZSRC Field of Research 2020401207. Fundamental and theoretical fluid dynamics
Public Notes

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.

Byline AffiliationsDepartment of Mathematics and Computing
Perm State University, Russia
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