SAIP2012

Name: SAIP2012
Start: 2012-07-09T07:30:00+02:00
End: 2012-07-13T23:00:00+02:00
Location: No location set

9-13 July 2012

Africa/Johannesburg timezone

<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14">SAIP2012 PROCEEDINGS AVAILABLE</a>

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Mixing Length Theory as a closure model for turbulent convection.

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Oral Presentation Track D1 - Astrophysics

Dr Fabio Frescura (U Witwatersrand) Mr Sashin Moonsamy (U Witwatersrand)

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We discuss the origins of Mixing Length Theory (MLT) in the work of Boussinesq on eddy viscosity, and of Prandtl who implemented Boussinesq's suggestions by exploiting an analogy with transport mechanisms in the kinetic theory of gases. This enables us to identify MLT as a closure model for the Reynolds-averaged Navier-Stokes equations. We discuss the shortcomings of this method of closure and propose alternatives which may useful in astrophysical modelling.

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Dr Fabio Frescura (U Witwatersrand) Mr Sashin Moonsamy (U Witwatersrand)

Dr Christiaan Engelbrecht (U Johannesburg)

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SAIP2012

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Mixing Length Theory as a closure model for turbulent convection.

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SAIP2012

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