Eur. Phys. J. AP
Volume 16, Number 3, December 2001
|Page(s)||217 - 229|
|Section||Plasma, Discharges and Processes|
|Published online||15 December 2001|
Coupling between Marangoni and Rosensweig instabilities
Microgravity Research Center, Fac. des Sciences Appliquées, Université Libre de
Bruxelles, Campus Solbosch, CP 165/62, avenue F.D. Roosevelt, 1050 Bruxelles,
2 Association Euratom-État Belge, Fac. des Sciences, Université Libre de Bruxelles, Campus Plaine, CP 231, boulevard du Triomphe, 1050 Bruxelles, Belgium
3 Institute of Mechanics, Bulgarian Acad. of Sciences, Ac. G. Bontchev St., Bl 4, 1113 Sofia, Bulgaria
Revised: 18 July 2001
Accepted: 16 August 2001
Published online: 15 December 2001
Two semi-infinite incompressible and immiscible viscous fluids of infinite lateral extent are considered in the gravity field. One of them is ferromagnetic and the other is a usual Newtonian liquid. Such a system is submitted to a magnetic field normal to the reference flat surface, which separates the two bulks. Developing the linear stability analysis, we show that the Rosensweig critical values for transverse waves remain unaffected by a solutal or thermal Marangoni instability.
PACS: 75.50.Mm – Magnetic liquids / 47.20.Dr – Surface-tension-driven instability / 47.20.Ma – Interfacial instability
© EDP Sciences, 2001
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