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Poster communications

The convective approximations

Abstract : Convection can occur in a shallow layer of fluid with a small temperature contrast across the layer. Thus, it is natural to hope for a simpler description of buoyantly driven flows via an expansion of the fully compressible equations. The Boussinesq approximation performs well in modeling convection in laboratory experiments, but it is however unsatisfactory for large stratified systems, the lower part of which is compressed by the overlying material. More general approximations are then required to describe convection in natural systems like oceans, stars or planetary cores.
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Contributor : Raphaël Raynaud <>
Submitted on : Monday, January 6, 2020 - 4:14:29 AM
Last modification on : Tuesday, July 21, 2020 - 3:32:19 AM
Document(s) archivé(s) le : Tuesday, April 7, 2020 - 3:43:29 PM


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  • HAL Id : hal-02428472, version 1


Raphaël Raynaud, Ludovic Petitdemange, Emmanuel Dormy. The convective approximations. European GdR Dynamo, Jul 2013, Ascona, Switzerland. ⟨hal-02428472⟩



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