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Extended statistics: sampling of skewness and kurtosis |
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June 27, 2011, 06:00 |
Extended statistics: sampling of skewness and kurtosis
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#1 |
Senior Member
Dr. Fabian Schlegel
Join Date: Apr 2009
Location: Dresden, Germany
Posts: 222
Rep Power: 17 |
Hello,
I would like to sample the skewness and kurtosis of the velocity field. In other words one could easily access the first and second order moments (uMean and uPrimeToMean) and now I would like to extend this to access also the third and forth order moments. My first guess would be to include the sampling of mean(u_i*u_j*u_k) in fieldAverage.C. Now my questions are: 1) Is there already something included in OpenFoam and I am to stupid to find it? I know that third and fourth order moments are not quite common in fluid mechanics. 2) Did anybody already implemented something like skewness and tested it successfully? May I could have a look into the code kind regards, Fabian |
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June 29, 2011, 11:06 |
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#2 |
Senior Member
Dr. Fabian Schlegel
Join Date: Apr 2009
Location: Dresden, Germany
Posts: 222
Rep Power: 17 |
Nobody has an idea?
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