Greetings,
I am trying to compile the 5MW_OC4Semi_Linear example file with an AeroDyn15 file incorporated into the .fst file. (I’m using OpenFAST 3.3.0 build).
The simulation finishes succesfully however, I get this warnings on my console during the simulation. Does anyone know if these have any impact on the accuracy of the results and how I can solve them?
Please find attached below the console output and the input files used for the simulation.
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OpenFAST
Copyright (C) 2022 National Renewable Energy Laboratory
Copyright (C) 2022 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.
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OpenFAST-v3.3.0
Compile Info:
- Compiler: Intel(R) Fortran Compiler 1900
- Architecture: 64 bit
- Precision: single
- OpenMP: No
- Date: Nov 02 2022
- Time: 14:07:06
Execution Info:
- Date: 05/17/2023
- Time: 11:21:45+0200
OpenFAST input file heading:
FAST Certification Test #25: NREL 5.0 MW Baseline Wind Turbine with OC4-DeepCwind semi
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 UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 1, blade 1)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 2, blade 1)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 3, blade 1)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 4, blade 1)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 1, blade 2)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 2, blade 2)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 3, blade 2)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 4, blade 2)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 1, blade 3)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 2, blade 3)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 3, blade 3)
Warning: Turning off Unsteady Aerodynamics because UA parameters are not included in airfoil
(airfoil has likely has constant polars). (node 4, blade 3)
Running HydroDyn.
Setting WaveTMax to 0.0 since WaveMod = 0
Reading in WAMIT output with root name ".\../5MW_Baseline/HydroData/marin_semi".
Computing radiation impulse response functions and wave diffraction forces.
Using SS_Excitation Module, with 36 excitation states
Using SS_Radiation Module, with 58 of 58 radiation states
MAP++ environment properties (set externally)...
Gravity constant [m/s^2] : 9.81
Sea density [kg/m^3] : 1025.00
Water depth [m] : 200.00
Vessel reference position [m] : 0.00 , 0.00 , 0.00
Running ServoDyn.
FAST_InitializeAll:FAST_Init:FAST_ReadPrimaryFile:1/VTK_fps is not an integer multiple of DT.
FAST will output VTK information at 16 fps, the closest rate possible.
Time: 0 of 50 seconds.
The BEM solution is being turned off due to low TSR. (TSR = 0). This warning will not be
Performing linearization 1 at simulation time 0 s. (RotSpeed=12 rpm, BldPitch1=3.09 deg)
Warning: SkewedWakeCorrection encountered a large value of chi (94.226 deg), so the yaw
correction will be limited. This warning will not be repeated though the condition may persist.
See the AD15 chi output channels, and consider turning off the Pitt/Peters skew model (set
SkewMod=1) if this condition persists.
Total Real Time: 3.8303 minutes
Total CPU Time: 3.751 minutes
Simulation CPU Time: 3.7458 minutes
Simulated Time: 0.83333 minutes
Time Ratio (Sim/CPU): 0.22247
OpenFAST terminated normally.
File transfer link to the input files: https://filetransfer.io/data-package/HxxYPXhj#link
Best regards,
Pere