搜索结果: 1-15 共查到“地球物理学 Rotating”相关记录17条 . 查询时间(0.026 秒)
Perturbed stellar motions around the rotating black hole in Sgr A* for a generic orientation of its spin axis
Classical general relativity Experimental tests of gravitational theories Black holes Physics of black holes Satellite orbits
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2011/8/17
Abstract: Empirically determining the averaged variations of the orbital parameters of the stars orbiting the Supermassive Black Hole (SBH) hosted by the Galactic Centre (GC) in Sgr A* is, in principl...
Nonlinear interaction between acoustic gravity waves in a rotating atmosphere
Nonlinear interaction acoustic gravity waves rotating atmosphere
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2009/11/16
The influence of the Earth's rotation on the resonant interaction of atmospheric waves is investigated. The explicit expressions for the coupling coefficients are presented. They are derived by means ...
Cyclostrophic vortices in polar regions of rotating planets
Cyclostrophic vortices polar regions rotating planets
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2009/11/12
Multi-petal, rotating vortices can form in two-dimensional flows consisting of an inviscid incompressible fluid under certain conditions. Such vortices are principally nonlinear thermo-hydrodynamical ...
Bifurcations and instabilities in rotating two-layer fluids:I.f-plane
Bifurcations instabilities two-layer fluids I.f-plane
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2009/11/12
In this paper, we show that the behaviour of weakly nonlinear waves in a 2-layer model of baroclinic instability on an f-plane with varying viscosity is determined by a single, degenerate codimension ...
Baroclinic instability of a symmetric,rotating,stratified flow:a study of the nonlinear stabilisation mechanisms in the presence of viscosity
Baroclinic instability nonlinear stabilisation mechanisms presence of viscosity
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2009/11/12
This paper presents the analysis of symmetric circulations of a rotating baroclinic flow, forced by a steady thermal wind and dissipated by Laplacian friction. The analysis is performed with numerical...
Bifurcations and instabilities in rotating,two-layer fluids:II. β-plane
Bifurcations instabilities two-layer fluids β-plane
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2009/11/12
In this paper, we show that the behavior of weakly nonlinear waves in a 2-layer model of baroclinic instability on a b-plane with varying viscosity is determined by a single, degenerate codimension th...
Instability patterns between counter-rotating disks
Instability patterns counter-rotating disks
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2009/11/12
The instability patterns in the flow between counter-rotating disks (radius to height ratio R/h from 3.8 to 20.9) are investigated experimentally by means of visualization and Particle Image Velocimet...
Centrifugally driven convection in the rotating cylindrical annulus with modulated boundaries
Centrifugally driven convection cylindrical annulus modulated boundaries
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2009/11/12
The effect of sinusoidally modulated conical end boundaries on convection in a rotating cylindrical annulus is investigated theoretically and experimentally. A quasiperiodic time dependence of convect...
Stochastic resonance in a nonlinear model of a rotating,stratified shear flow,with a simple stochastic inertia-gravity wave parameterization
Stochastic resonance nonlinear model shear flow stochastic inertia-gravity wave parameterization
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2009/11/11
We report on a numerical study of the impact of short, fast inertia-gravity waves on the large-scale, slowly-evolving flow with which they co-exist. A nonlinear quasi-geostrophic numerical model of a ...
Experiments on transitions of baroclinic waves in a differentially heated rotating annulus
transitions of baroclinic waves differentially heated rotating annulus
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2009/11/11
Experiments of baroclinic waves in a rotating, baroclinic annulus of fluid are presented for two gap widths. The apparatus is a differentially heated cylindrical gap, rotated around its vertical axis ...
Rossby-wave turbulence in a rapidly rotating sphere
Rossby-wave turbulence rapidly rotating sphere
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2009/11/11
We use a quasi-geostrophic numerical model to study the turbulence of rotating flows in a sphere, with realistic Ekman friction and bulk viscous dissipation. The forcing is caused by the destabilizati...
Topographic instability of flow in a rotating fluid
Topographic instability of flow rotating fluid
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2009/11/9
Here are presented the results of experimental and theoretical studies on a stability of zonal geostrophic flows in the rotating layer of the shallow water. In the experiments, a special apparatus by ...
Anisotropic turbulence and zonal jets in rotating flows with a β-effect
Anisotropic turbulence zonal jets rotating flows β-effect
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2009/11/9
Numerical studies of small-scale forced, two-dimensional turbulent flows on the surface of a rotating sphere have revealed strong large-scale anisotropization that culminates in the emergence of quasi...
Breeding and predictability in the baroclinic rotating annulus using a perfect model
Breeding predictability baroclinic rotating annulus perfect model
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2009/11/2
We present results from a computational study of predictability in fully-developed baroclinically unstable laboratory flows. This behaviour is studied in the Met Office/Oxford Rotating Annulus Laborat...
Long-term evolution of strongly nonlinear internal solitary waves in a rotating channel
Long-term evolution nonlinear internal solitary waves rotating channel
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2009/10/30
The evolution of internal solitary waves (ISWs) propagating in a rotating channel is studied numerically in the framework of a fully-nonlinear, nonhydrostatic numerical model. The aim of modelling eff...