Error while running FAST.Farm on Windows

[1900360]

Description
<Hi, I am trying to run fast.farm on windows. First I used the input file on the official website, but the following error occurred when CMD executed the command>

Produce

Steps to reproduce the behavior:

1. Windows 10, Compiler: Intel(R) Fortran Compiler 1900
2. Run 'FAST.Farm_x64.exe FAST.Farm--input.dat' case with cmd
3. See the error

Expected behavior
<The BEM solution is being turned off due to low TSR. (TSR = 0). This warning will not be
repeated though the condition may persist. (See GeomPhi output channel.)
T1:FARM_InitialCO:FWrap_t0:FWrap_CalcOutput:Nacelle-yaw error is undefined because the
rotor-disk-averaged relative wind speed is directed vertically>

Obviously, my input conflicts with the source program, or something is wrong, but I can't figure out why.The input file is at the end
4.The cmd output is now:

G:\desktop\nothing for something\dwm\dwm\code\openfast\low>FAST.Farm_x64.exe FAST.Farm--input.dat

**************************************************************************************************
FAST.Farm

Copyright (C) 2021 National Renewable Energy Laboratory
Copyright (C) 2021 Envision Energy USA LTD

This program is licensed under Apache License Version 2.0 and comes with ABSOLUTELY NO WARRANTY.
See the "LICENSE" file distributed with this software for details.
**************************************************************************************************

FAST.Farm-v3.0.0
Compile Info:
 - Compiler: Intel(R) Fortran Compiler 1900
 - Architecture: 64 bit
 - Precision: single
 - OpenMP: No
 - Date: Jun 23 2021
 - Time: 21:41:28
Execution Info:
 - Date: 08/11/2021
 - Time: 16:13:57+0800

 Heading of the FAST.Farm input file:
   "FAST.Farm--input"
Running AWAE.
Running WakeDynamics.
Running FASTWrapper (v1.00.00, 7-Feb-2017).
Running OpenFAST.
OpenFAST input file heading:
    FAST Certification Test #19: NREL 5.0 MW Baseline Wind Turbine with OC3 Monopile RF
    Configuration, for use in offshore analysis

Running ElastoDyn.
Nodal outputs section of ElastoDyn input file not found or improperly formatted.
Running AeroDyn.
AD15 Nodal Outputs: Nodal output section of AeroDyn input file not found or improperly formatted.
Skipping nodal outputs.
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 1, blade 1)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 2, blade 1)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 3, blade 1)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 4, blade 1)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 1, blade 2)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 2, blade 2)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 3, blade 2)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 4, blade 2)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 1, blade 3)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 2, blade 3)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 3, blade 3)
Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. (node 4, blade 3)
Running InflowWind.
Running ServoDyn.
Running ServoDyn Interface for Bladed Controllers (using Intel Visual Fortran for Windows, ).
Using legacy Bladed DLL interface.
Running HydroDyn.
 Generating incident wave kinematics and current time history.
 Calculating second order difference frequency wave kinematics.
 Calculating second order sum frequency wave kinematics.
Running SubDyn.
   Fixed bottom case detected
   Performing Craig-Bampton reduction 60 DOFs -> 0 modes + 6 DOFs
   Using static improvement method for gravity and ext. loads
   Calculating Full System Modes for summary file
 Time: 0 of 60 seconds.
The BEM solution is being turned off due to low TSR.  (TSR = 0). This warning will not be
repeated though the condition may persist. (See GeomPhi output channel.)

T1:FARM_InitialCO:FWrap_t0:FWrap_CalcOutput:Nacelle-yaw error is undefined because the
rotor-disk-averaged relative wind speed is directed vertically



 Aborting FAST.Farm.

Additional context
<In addition, I am learning how to use the DWM model of Fast. Farm to simulate the single fan dynamic wake, if anyone has done this, please contact me, I would appreciate it！>
FAST.Farm--input.txt

[jjonkman]

Dear @1900360,

You said that you are using one an input file from the official website, but I see that you've changed many input parameters, including the location of the wind turbine and which OpenFAST model is being used. The error is saying that the "Nacelle-yaw error is undefined because the rotor-disk-averaged relative wind speed is directed vertically". FAST.Farm cannot run if the rotor-disk-averaged relative wind speed is directed vertically. Based on the settings you've changed in your input file(s), do you know why the the wind speed is this way? Can you run FAST.Farm as is without changing the input files? If so, what input file change leads to this error?

Best regards,

[1900360]

Dear @jjonkman,

Hello, I changed the data in the input file just because the official website file failed to run before. The changes include the AMBIENT WIND and WIND TURBINES. Because the OpenFAST model in the official website refers to the relative position, and I think the official website has not been updated for a long time, so the name of the file is different from the name of the existing OpenFAST Model, so I made the above changes. So I was wondering if you have a complete and up-to-date input file and how the DWM model is used? Forgive me for being a novice, because there are not many tutorials on the fast. Farm model on the Internet.

Best regards,

[1900360]

Dear @jjonkman,

I am using this kind of fan model, is there any problem?

Best regards,
FAST.Farm--input.txt
5MW_Land_DLL_WTurb.txt

[jjonkman]

Dear @1900360,

I haven't tried to review your files in detail, but I would suggest first starting with one of the existing FAST.Farm examples. There are two provided in the OpenFAST r-test--one using LES inflow and one using TurbSim-derived inflow--see: https://github.com/OpenFAST/r-test/tree/main/glue-codes/fast-farm. Do these run for you without error?

Best regards,

[1900360]

I ran the two examples you mentioned, but I got the following error：

”“”
The BEM solution is being turned off due to low TSR. (TSR = 0). This warning will not be
repeated though the condition may persist. (See GeomPhi output channel.)

T1:FARM_InitialCO:FWrap_t0:FAST_Solution0:CalcOutputs_And_SolveForInputs:SolveOption2:SolveOption2
c_Inp2AD_SrvD:InflowWind_CalcOutput:CalcOutput:IfW_4Dext_CalcOutput [position=(-5, 0, 90) in
wind-file coordinates]:Interp4D:Outside the grid bounds.
SolveOption2:SrvD_CalcOutput:DLL_controller_call:Running with torque and pitch control of the
NREL offshore 5MW baseline wind turbine from DISCON.dll as written by J. Jonkman of NREL/NWTC for
use in the IEA Annex XXIII OC3 studies.
FWrap_t0:FWrap_CalcOutput:Nacelle-yaw error is undefined because the rotor-disk-averaged relative
wind speed is directed vertically

Aborting FAST.Farm.
“”“
What should I do to prevent such a mistake

[1900360]

@jjonkman @NRELAdmin

[1900360]

Do you have a sample file for the 2MW fan? Forgive me for needing it so badly

[jjonkman]

Dear @1900360,

I would not expect you to receive this error running the sample FAST.Farm model provided by NREL, unmodified. Perhaps there is something wrong with the version of FAST.Farm you compiled yourself? Can you try running the NREL example using the precompiled version of FAST.Farm for Windows, available from here: https://github.com/OpenFAST/openfast/releases/download/v3.0.0/FAST.Farm_x64.exe?

By "2MW fan", do you mean a wind turbine rated for 2 MW? NREL does not such a model available in the public domain. The closest is probably the WindPACT 1.5-MW baseline wind turbine.

Best regards,

[1900360]

I have been able to run the example, but the duration is short and it does not show the full wake evolution. What should I do?

[1900360]

When Mod_AmbWind=1 in the input file of fast.farm, the program runs fine, but the above problems may occur because the high fidelity precursor simulation using VTK format generates too little ambient wind data (according to the official website), which can only run 30 steps at low resolution. The high resolution wind data output file cannot be generated. At present, I changed Mod_AmbWind in the input file of fast.farm to 2 (other parameters remain unchanged), but the following problems occurred

(base) G:\desktop\nothingforsomething\dwm\dwm\code\openfast\reg_tests\r-test\glue-codes\fast-farm\LESinflow>FAST.Farm_x64.exe FAST.Farm--input.dat

**************************************************************************************************
FAST.Farm

Copyright (C) 2021 National Renewable Energy Laboratory
Copyright (C) 2021 Envision Energy USA LTD

This program is licensed under Apache License Version 2.0 and comes with ABSOLUTELY NO WARRANTY.
See the "LICENSE" file distributed with this software for details.
**************************************************************************************************

FAST.Farm-v3.0.0
Compile Info:
 - Compiler: Intel(R) Fortran Compiler 1900
 - Architecture: 64 bit
 - Precision: single
 - OpenMP: No
 - Date: Jun 23 2021
 - Time: 21:41:28
Execution Info:
 - Date: 08/24/2021
 - Time: 10:44:18+0800

 Heading of the FAST.Farm input file:
   "FAST.Farm--input"
Running AWAE.
Running InflowWind.

   Reading a 101x35 grid (1000 m wide, 5 m to 345 m above ground) with a characteristic wind
   speed of 9.243 m/s. This full-field file was generated by TurbSim (v2.00.07a-bjj, 14-Jun-2016)
   on 24-Sep-2019 at 16:18:09.

   Processed 2000 time steps of 10-Hz full-field data (period of 200 seconds).
Running WakeDynamics.
Running FASTWrapper (v1.00.00, 7-Feb-2017).
Running OpenFAST.
OpenFAST input file heading:
    FAST Certification Test #26: NREL 5.0 MW Baseline Wind Turbine (Onshore)

Running ElastoDyn.
Nodal outputs section of ElastoDyn input file not found or improperly formatted.
Running AeroDyn.
AD15 Nodal Outputs: Nodal output section of AeroDyn input file not found or improperly formatted.
Skipping nodal outputs.
Running InflowWind.
Running ServoDyn.
Running ServoDyn Interface for Bladed Controllers (using Intel Visual Fortran for Windows, ).
Using legacy Bladed DLL interface.
 Time: 0 of 60 seconds.
The BEM solution is being turned off due to low TSR.  (TSR = 0). This warning will not be
repeated though the condition may persist. (See GeomPhi output channel.)

T1:FARM_InitialCO:FWrap_t0:FAST_Solution0:CalcOutputs_And_SolveForInputs:SolveOption2:SolveOption2
c_Inp2AD_SrvD:InflowWind_CalcOutput:CalcOutput:IfW_4Dext_CalcOutput [position=(-5, 0, 90) in
wind-file coordinates]:Interp4D:Outside the grid bounds.
SolveOption2:SrvD_CalcOutput:DLL_controller_call:Running with torque and pitch control of the
NREL offshore 5MW baseline wind turbine from DISCON.dll as written by J. Jonkman of NREL/NWTC for
use in the IEA Annex XXIII OC3 studies.
FWrap_t0:FWrap_CalcOutput:Nacelle-yaw error is undefined because the rotor-disk-averaged relative
wind speed is directed vertically



 Aborting FAST.Farm.

[1900360]

(1) How can I extend the wake simulation time?
(2) What should I do if I encounter the above situation?
(3) If I want to use a wind turbine rated for 2 MW, how should I change the preset model？
@jjonkman @NRELAdmin

[1900360]

Here's the change I made