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Generation of the Solar Subsurface Shear

Published online by Cambridge University Press:  13 May 2016

K. L. Chan
K. L. Chan*
Affiliation:
Mathematics Department, The Hong Kong University of Science & Technology, Clear Water Bay, Hong Kong

Abstract

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It is well known that a thin layer of angular velocity shear exists just below the solar surface. We propose that this layer is primarily generated by the radial-meridional component of the Reynolds stress. This Reynolds stress component is created by a characteristic upward-equatorward (or equivalently, downward-poleward) correlation of the turbulence velocity over a region in which the shear layer is embedded. Using 2D and 3D numerical experiments, we illustrate that this correlation is caused by vortices that get sucked down from the surface and turn aligned with the rotation vector (a la Taylor columns).

Type
Session II: Convection Zone and Local Area Helioseismology
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 173 - 176
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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