Mean zonal flows generated by librations of a rotating spherical cavity
نویسندگان
چکیده
منابع مشابه
Zonal flows in a mean-field solar dynamo model
Cyclic variations are observed in the solar differential rotation profile. The 11 year periodicity of these zonal shear flows (often referred to as “torsional oscillations”) is consistent with the idea that they are driven by the Lorentz forces that are associated with the large-scale solar dynamo. This suggests that these flows may be able to provide indirect observational evidence that can be...
متن کاملSuppression of turbulence by self-generated and imposed mean flows.
The first direct experimental evidence of the suppression of quasi-two-dimensional turbulence by mean flows is presented. The flow either is induced externally or appears in the process of spectral condensation due to an inverse cascade in bounded turbulence. The observed suppression of large scales is consistent with an expected reduction in the correlation time of turbulent eddies due to shea...
متن کاملGeneration of Mean Flows in a Rotating Convection Layer
The instability of convection rolls in a fluid layer heatet from below is studied in the case where the layer rotates about an axis slightly inclined with respect to the vertical. The inclination destroys the horizontal isotropy of the layer, but the instability of rolls found by Küppers and Lortz [1] is little affected as long as the angle of inclination is small. A new effect is the generatio...
متن کاملStability and bifurcations of two-dimensional zonal jet flows on a rotating sphere
In planetary atmospheres in Jupiter or Saturn, for example, strong zonal jets have been observed. The existence of the zonal jet flow has been considered as one of the robust properties of planetary atmospheres. The two-dimensional incompressible Navier-Stokes flow on a rotating sphere is considered to be one of the simplest and most fundamental models of the atmospheric motions taking into acc...
متن کاملIntegral Properties of Zonal Spherical Functions, Hypergeometric Functions and Invariant
Some integral properties of zonal spherical functions, hypergeometric functions and invariant polynomials are studied for real normed division algebras.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2010
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112010000753