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Reynolds stress models of convection in convective cores

Published online by Cambridge University Press:  01 August 2006

Ian W Roxburgh  and
Friedrich Kupka
Ian W Roxburgh
Affiliation:
Queen Mary, University of London, UK email: i.w.roxburgh@qmul.ac.uk
Friedrich Kupka
Affiliation:
Max-Planck-Institute for Astrophysics, Garching, Germany email: fk@mpa-garching.mpg.de
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Abstract

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We investigate the properties of non-local Reynolds stress models of turbulent convection in a spherical geometry. Regularity at the centre r=0 places constraints on the behaviour of 3rd order moments. Some of the down-gradient and algebraic closure models have inconsistent behaviour at r=0. A combination of down-gradient and algebraic closures gives a consistent prescription that can be used to model convection in stellar cores.

Keywords

Convectionstars: interiors
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 77 - 79
Copyright
Copyright © International Astronomical Union 2007

References

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