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Wall Function
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At the Stammtisch United at Dortmund 2011, we noticed, that it is not clear, if the current version ...
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Friday, 25 February 2011
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Thursday, 10 March 2011 by Timo Krappel
Here are some results of a simple tube simulation. the difference of total pressure (Dptot) is an indicator for the losses.
-version: 1.6-ext
-kOmegaSST turbulence model
-wall functions: omegaWallFunction, nutSpalartAllmarasWallFunction (SpalAll), nutkWallFunction (omegaNut)
-within the nutkWallFunction there are 2 versions: 1. is standard (std); 2. the parameters kappa is changed to 0.4187 and E to 9 like in version 1.5-dev (mod)
-kOmegaSST2 is version 1.5-dev with adapted value for nut and the same for lowRe2
The nutSpalartAllmarasWallFunction has severe problems at some y+ value of about 15.
The nutkWallFunction also has some (smaller) problems at a y+ value of about 36.
Theres also a difference between omegaNut "std" and "mod" because of other parameters kappa and E.
Discussions
Proposal of Thermal roughWallFunction on Friday, 09 December 2011 21:46
Wall
Timo Krappel, Friday, 23 March 2012 09:49
If somebody is interested in the above testcase, let me know!
~30MB
Christian Schaad, Wednesday, 21 September 2011 12:38
Hello Timo,
I am not able to see your figure...
Could you check that, because I am very interested in your results.
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