Search Results - "Cébron, D."

Precessing spherical shells: flows, dissipation, dynamo and the lunar core by Cébron, D, Laguerre, R, Noir, J, Schaeffer, N

“…SUMMARY Precession of planets or moons affects internal liquid layers by driving flows, instabilities and possibly dynamos. The energy dissipated by these…”
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An impact-driven dynamo for the early Moon by Le Bars, M., Wieczorek, M. A., Karatekin, Ö., Cébron, D., Laneuville, M.

“…Stirring the Moon's core Recent palaeomagnetic and seismological studies have strengthened the suggestion that the Moon once possessed a core dynamo. Despite…”
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Rotating double-diffusive convection in stably stratified planetary cores by Monville, R, Vidal, J, Cébron, D, Schaeffer, N

“…SUMMARY In planetary fluid cores, the density depends on temperature and chemical composition, which diffuse at very different rates. This leads to various…”
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Libration‐driven flows in ellipsoidal shells by Lemasquerier, D., Grannan, A. M., Vidal, J., Cébron, D., Favier, B., Le Bars, M., Aurnou, J. M.

“…Planets and satellites can undergo physical librations, which consist of forced periodic variations in their rotation rate induced by gravitational…”
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Protostellar spin-down: a planetary lift? by Bouvier, J., Cébron, D.

“…When they first appear in the HR diagram, young stars rotate at a mere 10 per cent of their break-up velocity. They must have lost most of the angular momentum…”
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Shallow water waves generated by subaerial solid landslides by Viroulet, S., Cébron, D., Kimmoun, O., Kharif, C.

“…Subaerial landslides are common events, which may generate very large water waves. The numerical modelling and simulation of these events are thus of primary…”
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Tidal instability in exoplanetary systems evolution by Cébron, D., Moutou, C., Le Bars, M., Le Gal, P., Farès, R.

“…A new element is proposed to play a role in the evolution of extrasolar planetary systems: the tidal (or elliptical) instability. It comes from a parametric…”
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Earth rotation prevents exact solid-body rotation of fluids in the laboratory by Boisson, J., Cébron, D., Moisy, F., Cortet, P.-P.

“…We report direct evidence of a secondary flow excited by the Earth rotation in a water-filled spherical container spinning at constant rotation rate. This…”
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Tidal instability in a rotating and differentially heated ellipsoidal shell by Cébron, D., Maubert, P., Le Bars, M.

“…The stability of a rotating flow in a triaxial ellipsoidal shell with an imposed temperature difference between inner and outer boundaries is studied…”
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Full sphere hydrodynamic and dynamo benchmarks by Marti, P., Schaeffer, N., Hollerbach, R., Cébron, D., Nore, C., Luddens, F., Guermond, J.-L., Aubert, J., Takehiro, S., Sasaki, Y., Hayashi, Y.-Y., Simitev, R., Busse, F., Vantieghem, S., Jackson, A.

“…Convection in planetary cores can generate fluid flow and magnetic fields, and a number of sophisticated codes exist to simulate the dynamic behaviour of such…”
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Magnetohydrodynamic simulations of the elliptical instability in triaxial ellipsoids by Cébron, D., Le Bars, M., Maubert, P., Le Gal, P.

“…The elliptical instability can take place in planetary cores and stars elliptically deformed by gravitational effects, where it generates large-scale…”
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Experimental study of libration-driven zonal flows in non-axisymmetric containers by Noir, J., Cébron, D., Le Bars, M., Sauret, A., Aurnou, J.M.

“…► We study experimentally the mean flow driven by longitudinal libration in axisymmetric and non-axisymmetric containers. ► We corroborate the analytical…”
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A systematic numerical study of the tidal instability in a rotating triaxial ellipsoid by Cébron, D., Le Bars, M., Leontini, J., Maubert, P., Le Gal, P.

“…The full non-linear evolution of the tidal instability is studied numerically in an ellipsoidal fluid domain relevant for planetary cores applications. Our…”
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A spherical shell numerical dynamo benchmark with pseudo-vacuum magnetic boundary conditions by Jackson, A., Sheyko, A., Marti, P., Tilgner, A., Cébron, D., Vantieghem, S., Simitev, R., Busse, F., Zhan, X., Schubert, G., Takehiro, S., Sasaki, Y., Hayashi, Y.-Y., Ribeiro, A., Nore, C., Guermond, J.-L.

“…It is frequently considered that many planetary magnetic fields originate as a result of convection within planetary cores. Buoyancy forces responsible for…”
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Precession-driven flows in stress-free ellipsoids by Vidal, J, Cébron, D

“…Journal of Fluid Mechanics, 2023, 954, A5 Motivated by modelling rotating turbulence in planetary fluid layers, we investigate precession-driven flows in…”
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A systematic numerical study of the tidal instability in a rotating triaxial ellipsoid by Cébron, D., Le Bars, M., Leontini, J., Maubert, P., Le Gal, P.

“…The full non-linear evolution of the tidal instability is studied numerically in an ellipsoidal fluid domain relevant for planetary cores applications. Our…”
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Bistable flows in precessing spheroids by Cébron, D

“…Fluid Dynamics Research, Institute of Physics, 2015, 47 (2), pp.025504 Precession driven flows are found in any rotating container filled with liquid, when the…”
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Protostellar spin-down: a planetary lift? by Bouvier, J, Cébron, D

“…When they first appear in the HR diagram, young stars rotate at a mere 10\% of their break-up velocity. They must have lost most of the angular momentum…”
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Analytical and numerical study of validation test-cases for multi-physic problems: application to magneto-hydro-dynamic by Cebron, David, Sigrist, Jean-Francois

“…The present paper is concerned with the numerical simulation of Magneto-Hydro-Dynamic (MHD) problems with industrial tools. MHD has received attention some…”
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Latitudinal libration driven flows in triaxial ellipsoids by Vantieghem, S, Cébron, D, Noir, J

“…J. Fluid Mech. (2015), 771, pp. 193-228 Motivated by understanding the liquid core dynamics of tidally deformed planets and moons, we present a study of…”
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