Non-linear k– ε turbulence model results for flow over a building at full-scale

Turbulence modelling is a crucial question in the application of CFD to flows over buildings. The impinging flow and anisotropic nature of the turbulence present severe challenges. This paper presents a comparison of CFD against full-scale results. It differs from previous work which has concentrate...

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Bibliographic Details
Published in:Applied mathematical modelling 2003-12, Vol.27 (12), p.1013-1033
Main Authors: Wright, N.G., Easom, G.J.
Format: Article
Language:English
Subjects:
Anisotropy
Buildings
Full-scale
k– ε
Turbulence modelling
Wind engineering
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Summary:Turbulence modelling is a crucial question in the application of CFD to flows over buildings. The impinging flow and anisotropic nature of the turbulence present severe challenges. This paper presents a comparison of CFD against full-scale results. It differs from previous work which has concentrated on the wind-tunnel scale. In order to better account for the production of turbulent kinetic energy and the anisotropic nature of the turbulence a non-linear k– ε model is implemented. The results are discussed for different turbulence models and for the comparison of computed results with the measurements from full-scale.
ISSN:0307-904X
DOI:10.1016/S0307-904X(03)00123-9