Hi, Jana.
You can, of course, always change the source code and recompile.
However, TurbSim 1.06.00 has some undocumented features that may help you:
When TurbModel = “USRVKM”:
The standard deviations and length scales come from a lookup table at the end of the TurbSim input file.
The sigma profile values are multiplied by the StdScale1, StdScale2, StdScale3 values to get the standard deviations used for each component in the von Karman spectra.
Heights must be listed in increasing order. Only NumUSRz heights are read, so specify that value correctly!
TurbSim interpolates linearly between the (first NumUSRz) heights specified in the table; it uses nearest-neighbor before the first and after the last values read.
Wind speed and direction are from the lookup table only if WindProfileType is “USR” or “default”
TurbSim reads the values from the “Non-IEC Meteorological Boundary Conditions,” though some parameters may not apply. You should make sure you set the Reynolds stress and coherence parameters so that you get what you want (I think the default values are based on the NWTCUP model for some of those inputs).
WindProfileType = “USR”
This can be specified for any of the spectral models.
URef and RefHt input values are not used.
The wind speed and direction values come from a lookup table at the end of the TurbSim input file.
Heights must be listed in increasing order. Only NumUSRz heights are read, so specify that value correctly!
TurbSim interpolates linearly between the heights specified in the table; it uses nearest-neighbor before the first and after the last values read.
[/*:m][/list:u]
I’m in the process of documenting the features in TurbSim v2.0.0. This alpha version has examples in the CertTest folder, and the code is a little more flexible in terms of the coherence models you can use with each of these features. You can test a copy of it here: nwtc.nrel.gov/alphas .