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 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 peculiear to the anisotropic viscosity models) and makes possible calculations of the second moments.
P. P. Shirshov Institute of Oceanology, Academy of Sciences of the Union of Soviet Socialist Republics, Moscow, Union of Soviet Socialist Republics.
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Simuni