Unable to set `k_vAmb` and `k_vShr` parameters in FAST.Farm 4.0.2

[rthedin]

On FAST.Farm v.4.0.2, I'm not able to set any numerical value to k_vAmb and k_vShr. I get the following error:

 Farm_Initialize:Farm_ReadPrimaryFile:Invalid numerical input for file "SeagreenFF.fstf" occurred
 while trying to read k_vShr.

If I set them both as DEFAULT, it works.

[jjonkman]

@rthedin,

Can you clarify what you are entering on line 55 (for k_vAmb) when you get this error? Also, what does the Echo file report back for that line?

Thanks,

[rthedin]

The exact line depends on the number of turbines. If I have a single turbine, k_vAmb is on line 55 and k_vShr is on line 56.

The echo file stops right before the k_vAmb. Its last line is the parameter that comes immediately before:

<...>
2.2000E+00  C_NearWake     - Calibrated parameter for the near-wake correction (-) [>1.0] or DEFAULT [DEFAULT=1.8]

[andrew-platt]

Summary after chatting with @rthedin in person:

For 4.0.2, several parameters were combined together. The k_vAmb parameter is a set of 5 parameters now which are all specified together as default or will need to be provided as a set of 5 values on that line. The same applies for k_vShr. In retrospect, changing the name of that input value would have helped users know that this change occurred.

Documentation on the revised inputs here: https://openfast.readthedocs.io/en/main/source/user/fast.farm/InputFiles.html#wake-dynamics

The comments in the r-test cases should have all been updated.