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New LESProperties in version 1.6

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Old   November 8, 2009, 13:16
Default New LESProperties in version 1.6
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Sebastian Gatzka
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Hello world.

Taking a look into the LESProperties in the channel395-case I have recognized a change to the LESProperties dictionary from version 1.5 to 1.6.

I'm not familiar with the new dictionary. Is there some documentation anywhere?

Lets be specific:
The tutorial case uses a oneEqnEddy-model with vanDriest-damping.
In the vanDriestCoeffs-entry I can find the following:

Code:
vanDriestCoeffs
{
    delta           cubeRootVol;
    cubeRootVolCoeffs
    {
        deltaCoeff      1;
    }

    smoothCoeffs
    {
        delta           cubeRootVol;
        cubeRootVolCoeffs
        {
            deltaCoeff      1;
        }

        maxDeltaRatio   1.1;
    }

    Aplus           26;
    Cdelta          0.158;
}
First of all: What happend to the old ce and ck coefficients?
And why is there an entry with delta cubeRootVol inside the vanDriestCoeffs entry?
I thought is either vanDriest or cubeRootVol?
Why are these two linked by now?

I have made some basic experience with LES, but I would not say I'm an expert. Maybe I'm just too confused by the new look of the dictionary and miss the link to the old coefficients...

Have a nice day. S.
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Old   January 12, 2010, 05:24
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I think this is because you use the cubeRootVol method for delta. Thus, you ask for using the vanDriestCoeffs for this particular one. This explains the entry inside the vanDriestCoeffs.
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