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Code: Code_Saturne

Version: 2.0

Authors: B. Carissimo

Method and Numerical Options

Models

k-eps

Mesh

Description of the results files

Boundary conditions

Rough wall surface boundary conditions Analytical upstream velocity and turbulence profile

Reference Publications

Additional information (links, pictures, etc.)

This test-case is dedicated to the verification of the rough law-of-the wall, with different roughness (in meters).

As it can be seen in all the figures, the results are in good agreement with the experiment either for the smooth-to-rough transition or the rough-to-smooth transition.

Each curve on the two graphs herebelow represents a velocity profile at a given distance (in meters) from the transition.

  • Smooth-rough velocity:
    USR-09210928_6.png

  • Rough-smooth velocity:
    URS-09211740_6.png

  • Smooth-rough surface stress:
    TauSR-09210928_6.png

  • Rough-smooth surface stress:
    TauRS-09211740_6.png



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Topic attachments
I Attachment Action Size Date Who Comment
pngpng TauRS-09211740_6.png manage 41.0 K 2010-09-21 - 15:43 BertrandCarissimo Rough-smooth surface stress
pngpng TauSR-09210928_6.png manage 37.6 K 2010-09-21 - 15:43 BertrandCarissimo Smooth-rough surface stress
pngpng URS-09211740_6.png manage 68.7 K 2010-09-21 - 15:42 BertrandCarissimo Rough-smooth velocity
pngpng USR-09210928_6.png manage 85.7 K 2010-09-21 - 15:41 BertrandCarissimo Smooth-rough velocity
Topic revision: r3 - 2011-09-15 - 08:22:29 - DavidMonfort
 

Computational Fluid Dynamics and Turbulence Mechanics
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