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The near wall region of turbulent natural convection flows: asymptotic considerations
Author(s) -
Hölling Marc,
Herwig Heinz
Publication year - 2005
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200510262
Subject(s) - natural convection , turbulence , mechanics , convection , rayleigh scattering , rayleigh number , constant (computer programming) , physics , thermodynamics , mathematics , computer science , optics , programming language
Abstract Turbulent natural convection along vertical walls is analysed asymptotically, i.e. for the Rayleigh‐number Ra → ∞. As a result universal temperature and velocity profiles are deduced that are valid for high Rayleigh numbers and can be used as wall functions in CFD‐codes. Constants in this asymptotic profiles are obtained by analysing high quality experimental and DNS data. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)