Oscillatory instabilities in the Rayleigh–Bénard problem with a free surface

The linear stability theory of the Rayleigh–Bénard problem when the fluid is bounded above by a free deformable surface is studied numerically. When the free surface is thermally insulated and the lower surface is isothermic the marginal curve for the onset of oscillatory convection lies below the m...

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Bibliographic Details
Published in:The Physics of fluids (1958) 1987-06, Vol.30 (6), p.1678-1682
Main Authors: Benguria, R. D., Depassier, M. C.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Hydrodynamic stability
Physics
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Summary:The linear stability theory of the Rayleigh–Bénard problem when the fluid is bounded above by a free deformable surface is studied numerically. When the free surface is thermally insulated and the lower surface is isothermic the marginal curve for the onset of oscillatory convection lies below the marginal curve for the exchange of stabilities.
ISSN:0031-9171
2163-4998
DOI:10.1063/1.866232