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Start Over Author "Programme Alliance" Topic [phys.phys.phys-geo-ph] physics [physics]/physics [physics]/geophysics [physics.geo-ph]
2 results on '"Programme Alliance"'

1. Direct Numerical Simulation of transitions towards structural vacillation and centrifugal convection in an air-filled, rotating, baroclinic annulus

Author

Read , Peter, Randriamampianina , Anthony, Maubert , Pierre, Früh , Wolf-Gerrit, Randriamampianina, Anthony, Department of Atmospheric, Oceanic and Planetary Physics [Oxford] ( AOPP ), University of Oxford [Oxford], 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 ), Programme ALLIANCE British Council - CNRS, Department of Atmospheric, Oceanic and Planetary Physics [Oxford] (AOPP), University of Oxford, Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), School of Engineering and Physical Sciences (SEPS), Heriot-Watt University [Edinburgh] (HWU), and Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)

Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph], [ PHYS.PHYS.PHYS-GEO-PH ] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], structural vacillation, [PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], Direct Numerical simulation, centrifugal convection, [ PHYS.MECA.MEFL ] Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], [PHYS.MECA.MEFL] Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
Published
2007

2. DNS of Structural Vacillation in the transition to geostrophic turbulence

Author

Peter L. Read, Anthony Randriamampianina, Wolf-Gerrit Früh, Pierre Maubert, Association Française de Mécanique, School of Engineering and Physical Sciences ( SEPS ), Heriot-Watt University [Edinburgh] ( HWU ), 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 ), Department of Atmospheric, Oceanic and Planetary Physics [Oxford] ( AOPP ), University of Oxford [Oxford], Programme ALLIANCE British Council - CNRS, J.M.L.M. Palma and A. Silva Lopes, Service irevues, irevues, School of Engineering and Physical Sciences (SEPS), Heriot-Watt University [Edinburgh] (HWU), 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), Department of Atmospheric, Oceanic and Planetary Physics [Oxford] (AOPP), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Randriamampianina, Anthony, and University of Oxford

Subjects
Convection, 010504 meteorology & atmospheric sciences, [PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], Baroclinity, Direct numerical simulation, Baroclinic, [SPI.MECA.MEFL] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], 01 natural sciences, [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], 010305 fluids & plasmas, Physics::Geophysics, Physics::Fluid Dynamics, [ SDU.STU.GP ] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], Rotating fluid, [ PHYS.PHYS.PHYS-GEO-PH ] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], 0103 physical sciences, Annulus (firestop), Fluid dynamics, [PHYS.MECA.MEFL] Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], Statistical physics, ComputingMilieux_MISCELLANEOUS, Physics::Atmospheric and Oceanic Physics, 0105 earth and related environmental sciences, Physics, [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph], Geostrophic turbulence, Turbulence, Direct Numerical Simulation, [ PHYS.MECA.MEFL ] Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph], Structural vacillation, Mechanics, [PHYS.MECA]Physics [physics]/Mechanics [physics], [ SPI.MECA.MEFL ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], [SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [PHYS.MECA] Physics [physics]/Mechanics [physics], Laboratory experiment, Geostrophic wind
Abstract

Colloque avec actes et comité de lecture. Internationale.; International audience; 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. In the present work, we find the emergence of a new steady wave solution with complex radial structure, associated with a change in the balance of forces to a centrifugally-dominated regime, followed (at high rotation rate) by a further transition to a form of structural vacillation associated with regular m = 3 eddies driven by centrifugal buoyancy.

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