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American Institute of Physics, Physics of Fluids, 11(22), p. 116601

DOI: 10.1063/1.3504356

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Tilt-over mode in a precessing triaxial ellipsoid

Journal article published in 2010 by D. Cébron ORCID, M. Le Bars, P. Meunier
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The tilt-over mode in a precessing triaxial ellipsoid is studied theoretically and numerically. Inviscid and viscous analytical models previously developed for the spheroidal geometry by Poincaré [Bull. Astr. 27, 321 (1910)] and Busse [J. Fluid Mech., 33, 739 (1968)] are extended to this more complex geometry, which corresponds to a tidally deformed spinning astrophysical body. As confirmed by three-dimensional numerical simulations, the proposed analytical model provides an accurate description of the stationary flow in an arbitrary triaxial ellipsoid, until the appearance at more vigorous forcing of time dependent flows driven by tidal and/or precessional instabilities. ; Comment: http://link.aip.org/link/doi/10.1063/1.3504356