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Large scale circulation in the convection zone and solar differential rotation

Journal Article:

Abstract

In this paper the dependence on depth and latitude of the solar angular velocity produced by a meridian circulation in the convection zone is studied assuming that the main mechanism responsible for setting up and driving the circulation is the interaction of rotation with convection. The first order equations (perturbation of the spherically symmetric state are solved in the Boussinesq approximation and in the steady state for the axissymmetric case. The interaction of convection with rotation is modelled by a convective transport coefficient. The model is consistent with the fact that the interaction of convection with rotation sets up a circulation (driven by the temperature gradient) which carries angular momentum toward the equator against the viscous friction. Unfortunately also a large flux variation at the surface is obtained. Nevertheless it seems that the model has the basic requisites for correct dynamo action.
Authors:
Belvedere, G; [1]  Paterno, L [2] 
  1. Instituto di Astronomia dell'Universita di Catania, 95125 Italy
  2. Osservatorio Astrofisico di Catania, 95125 Italy
Publication Date:
Apr 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-08-308479; EDB-77-096302
Resource Relation:
Journal Name: Sol. Phys.; (Netherlands); Journal Volume: 47:2
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SUN; CONVECTION; ROTATION; ANGULAR MOMENTUM; ANGULAR VELOCITY; BOUNDARY CONDITIONS; CONTINUITY EQUATIONS; LEGENDRE POLYNOMIALS; PRANDTL NUMBER; RADIAL VELOCITY; DIFFERENTIAL EQUATIONS; ENERGY TRANSFER; EQUATIONS; FUNCTIONS; HEAT TRANSFER; MOTION; POLYNOMIALS; STARS; VELOCITY; 640104* - Astrophysics & Cosmology- Solar Phenomena
OSTI ID:
7112469
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: SLPHA
Submitting Site:
INIS
Size:
Pages: 525-539
Announcement Date:
Jun 01, 1977

Journal Article:

Citation Formats

Belvedere, G, and Paterno, L. Large scale circulation in the convection zone and solar differential rotation. Netherlands: N. p., 1976. Web.
Belvedere, G, & Paterno, L. Large scale circulation in the convection zone and solar differential rotation. Netherlands.
Belvedere, G, and Paterno, L. 1976. "Large scale circulation in the convection zone and solar differential rotation." Netherlands.
@misc{etde_7112469,
title = {Large scale circulation in the convection zone and solar differential rotation}
author = {Belvedere, G, and Paterno, L}
abstractNote = {In this paper the dependence on depth and latitude of the solar angular velocity produced by a meridian circulation in the convection zone is studied assuming that the main mechanism responsible for setting up and driving the circulation is the interaction of rotation with convection. The first order equations (perturbation of the spherically symmetric state are solved in the Boussinesq approximation and in the steady state for the axissymmetric case. The interaction of convection with rotation is modelled by a convective transport coefficient. The model is consistent with the fact that the interaction of convection with rotation sets up a circulation (driven by the temperature gradient) which carries angular momentum toward the equator against the viscous friction. Unfortunately also a large flux variation at the surface is obtained. Nevertheless it seems that the model has the basic requisites for correct dynamo action.}
journal = {Sol. Phys.; (Netherlands)}
volume = {47:2}
journal type = {AC}
place = {Netherlands}
year = {1976}
month = {Apr}
}