Journal ArticleDOI
Inertial waves in a spherical shell induced by librations of the inner sphere: experimental and numerical results
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TLDR
In this article, an experimental investigation of the flow induced in a rotating spherical shell is presented, where the velocity of the shell is measured by a zonal jet on the cylinder tangent to the inner sphere and parallel to the axis of rotation.About:
This article is published in Fluid Dynamics Research.The article was published on 2013-05-17. It has received 33 citations till now. The article focuses on the topics: Spherical shell & Inertial wave.read more
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Flows driven by libration, precession, and tides
TL;DR: In this paper, a review of the flows driven by those mechanical forcings on rotating spheres and ellipsoids is presented, focusing on the associated instabilities and on the various routes toward turbulence.
A Solar System Survey of Forced Librations in Longitude
TL;DR: In this article, the authors present a survey of expected libration amplitudes for a subset of solar system bodies, identifying those bodies with amplitudes likely to be detectable, and commenting on spin state, and radial structure implications.
Journal ArticleDOI
Inertial wave excitation and focusing in a liquid bounded by a frustum and a cylinder
Marten Klein,Torsten Seelig,Michael V. Kurgansky,V Abouzar Ghasemi,Ion Dan Borcia,Andreas Will,Eberhard Schaller,Christoph Egbers,Uwe Harlander +8 more
TL;DR: In this article, the authors investigated the mechanism of localized inertial wave excitation and its efficiency for an annular cavity rotating with. Meridional symmetry is broken by replacing the inner cylinder with a truncated cone (frustum). Waves are excited by individual longitudinal libration of the walls.
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Meridional trapping and zonal propagation of inertial waves in a rotating fluid shell
Anna Rabitti,Leo R. M. Maas +1 more
TL;DR: In this article, the inviscid, linear inertial wave field is investigated by means of three-dimensional ray tracing in spherical shell domains, having in mind possible oceanographic applications, but in contrast to previous studies, they are now launched with a non-zero initial zonal component allowing for a more realistic, localized forcing and the development of azimuthal inhomogeneities.
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Experimental survey of linear and nonlinear inertial waves and wave instabilities in a spherical shell
TL;DR: In this article, the influence of the libration amplitude and frequency on linear and nonlinear inertial waves in a spherical shell with a radius ratio of 2.5 on the Kalliroscope visualisation in a meridional laser plane and quantitative particle image velocimetry (PIV) data in a horizontal plane was analyzed.
References
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Turbulence, Coherent Structures, Dynamical Systems and Symmetry
TL;DR: In this article, the authors present a review of rigor properties of low-dimensional models and their applications in the field of fluid mechanics. But they do not consider the effects of random perturbation on models.
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On almost rigid rotations
TL;DR: In this paper, it was shown that if the perturbation velocity is a smooth function of r, the distance from the axis, then the angular velocity of the main body of fluid is determined by balancing the outflow from the boundary layer on one disc with the inflow to the boundary layers on the other at the same value of r.
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On almost rigid rotations. Part 2
TL;DR: In this paper, the dynamical properties of a fluid, occupying the space between two concentric rotating spheres, are considered, attention being focused on the case where the angular velocities of the spheres are only slightly different and the Reynolds number R of the flow is large.
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A spectral solution of the magneto-convection equations in spherical geometry
TL;DR: In this paper, a fully three-dimensional solution of the magneto-convection equations is presented in spherical geometry, corresponding to the limits of slow and rapid rotation, and their relative advantages and disadvantages are discussed.