Modeling file nor geometry file are updating IECturbc default

[nRiccobo]

I wanted to change the IECturbc value as I generated different turbsim files for DLC 1.2 case. I tried "turbulence_class" and "IECturbc" in my DLCs cases, and I tried with/without quotations, but nothing worked. I also went to my geometry (yaml file) and updated turbulence class, but it also did not change the outcome.

dlc_sim_modeling.py

NREL-2.8-127.yaml

Current behavior

When I reviewed the generated turbsim .sum files for each case, I saw that IECturbc was equal to B. So I went to FASTLoadCases() Line 2076 and I hard coded this line:

dlc_generator.cases[i_case].IECturbc = 'C' # wt_class

Expected behavior

After hardcoding the above line, I was able to generate turbsim files and confirm in the .sum file that IECturbc = C now. So it seems like some input is not being read properly and there is a default value of IECturbc=B that seems to only make its way through the case generations.

Code versions

WEIS v1.6.0
Python 3.10.6

[abhineet-gupta]

If you want to simulate a particular numerical turbulence intensity value, you can add IECturbc: xx under the turbulent_wind input. But it won't accept a turbulence class input like B or C.
I would have thought that changing the turbulence_class directly in the geometry input file would work but it seems like it is getting overwritten by the default value in dlc_generator.py.

[nRiccobo]

Yes I also saw that, that when IECturbc: <str> there is a validation error and it only accepts values of type <float>. That seems inconsistent with OpenFAST because the .dat files can have <floats> or <str>.

I did set the turbulence_class and turbine_class inside the assembly dictionary of my geometry file. As far as I remember setting these params inside assembly used to work prior to the wind IO 2.0 release. Was the turbulence_class param moved?

[dzalkind]

I'm not sure how you're able to use WEIS 1.6 with WindIO 2.0. So far, I haven't been able to reproduce your issue. Setting turbulence_class in the assembly geometry options seems to work in the latest version (and example) I'm running. I suggest updating to the latest release of WEIS.