1. Direct Numerical Simulation of structural vacillation in the transition to geostrophic turbulence
- Author
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Randriamampianina , Anthony, Maubert , Pierre, Früh , Wolf-Gerrit, Read , Peter, Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM), School of Engineering and Physical Sciences (SEPS), Heriot-Watt University [Edinburgh] (HWU), Department of Atmospheric, Oceanic and Planetary Physics [Oxford] (AOPP), University of Oxford [Oxford], Programme ALLIANCE entre le laboratoire IRPHE, l'université d'Oxford UK et l'université Heriot-Watt d'Edinburgh UK, J. M. Chomaz, J. Sommeria, J. Verron, Institut de Recherche sur les Phénomènes Hors Equilibre ( IRPHE ), Aix Marseille Université ( AMU ) -Ecole Centrale de Marseille ( ECM ) -Centre National de la Recherche Scientifique ( CNRS ), School of Engineering and Physical Sciences ( SEPS ), Heriot-Watt University [Edinburgh] ( HWU ), Department of Atmospheric, Oceanic and Planetary Physics [Oxford] ( AOPP ), J. M. Chomaz, J. Sommeria, J. Verron, Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), and University of Oxford
- Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph] ,Geostrophic turbulence ,[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] ,Structural Vacillation ,[ PHYS.MECA.MEFL ] Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph] ,FOS: Physical sciences ,[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] ,Nonlinear Sciences - Chaotic Dynamics ,Geophysics (physics.geo-ph) ,Physics::Geophysics ,[SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] ,Physics - Geophysics ,Physics::Fluid Dynamics ,[ SDU.STU.GP ] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] ,[ PHYS.PHYS.PHYS-GEO-PH ] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] ,[ SPI.MECA.MEFL ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] ,[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] ,Chaotic Dynamics (nlin.CD) ,Barotropic instability ,Physics::Atmospheric and Oceanic Physics - Abstract
The onset of small-scale fluctuations around a steady convection pattern in a rotating baroclinic annulus filled with air is investigated using Direct Numerical Simulation. In previous laboratory experiments of baroclinic waves, such fluctuations have been associated with a flow regime termed Structural Vacillation which is regarded as the first step in the transition to fully-developed geostrophic turbulence., Comment: 6 pages
- Published
- 2007