I want to generate a wind field from TurbSim and put it in FAST.Farm, but it keeps giving me this error: “Error: FF wind array was exhausted at 2 seconds (trying to access data at -0.22222 seconds)”.
The steps I followed are :
(1) I Create a .bts file of wind field 1700m wide, 160m high, without turbulence and 18m/s at hub-height (90m), using TurbSim as following:
(2) I Put the file (Sample5MWTurbSim.bts in my case) in a folder named “Wind” and refer to it in the InflowWind.dat file of FAST.Farm:
(3) I Put the same grid size and points in FAST.Farm input file (.fstf) as the ones generated by TurbSim, and refer to InflowWind.dat in “InflowFile”:
(4) Finally, I run FAST.Farm, and it gives me the following error:
Copyright (C) 2017 National Renewable Energy Laboratory
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.
- Architecture: 64 bit
- Precision: single
- Date: 01/21/2021
- Time: 13:35:33+0100
Heading of the FAST.Farm input file:
Sample FAST.Farm input file
Reading a 171x17 grid (1700 m wide, 10 m to 170 m above ground) with a characteristic wind
speed of 18 m/s. This full-field file was generated by TurbSim (v1.50, 25-Sep-2009) on
21-Jan-2021 at 12:52:42.
Processed 1945 time steps of 10-Hz full-field data (194.4 seconds).
Farm_Initialize:Farm_ValidateInput:OutFmt produces a column width of 10 instead of 14 characters.
Farm_Initialize:For efficiency, NumPlanes has been reduced to the number of time steps (51).
Farm_Initialize:InflowWind_CalcOutput:CalcOutput:IfW_TSFFWind_CalcOutput [position=(890, 0, 10)
in wind-file coordinates]: Error: FF wind array was exhausted at 2 seconds (trying to access data
at -0.22222 seconds).
Can you help me with the issue ? Is it the right way to include a TurbSim file in FAST.Farm?