Statistical Hydromechanics of the Solar Differential Rotation

An axisymmetric hydrodynamic model of the solar differential rotation is suggested that differs from the previous axisymmetric models (with arbitrarily given anisotropic viscosity) in the use of the hydrodynamic equations (the Friedmann-Keller equations) for the statistical second moments of the flu...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 1982-06, Vol.79 (12), p.3903-3907
Main Authors: Monin, Andrei S., Simuni, Lazar M.
Format: Article
Language:English
Subjects:
Angular velocity
Astronomy
Convection
Entropy
Hydrodynamics
Mathematical moments
Physical Sciences: Astronomy
Radial velocity
Rotation
Solar rotation
Turbulence
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Summary:An axisymmetric hydrodynamic model of the solar differential rotation is suggested that differs from the previous axisymmetric models (with arbitrarily given anisotropic viscosity) in the use of the hydrodynamic equations (the Friedmann-Keller equations) for the statistical second moments of the fluctuations of velocity and entropy--i.e., turbulent fluxes of momentum and entropy. The model gives a correct reproduction of the differential rotation (without unreal temperature differences on the Sun's surface peculiar to the anisotropic viscosity models) and makes possible calculations of the second moments.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.79.12.3903