Dear Dr. Jonkman,
I am trying to modify the “NRELOffshrBsline5MW_OC4DeepCwind.fst” file to run mooring analysis using the MoorDyn module for Load Case 3.1.
The sample file is currently set to run the analysis using the FAST-OrcaFlex interface without including the HydroDyn module.
After switching the mooring computing module from OrcaFlex to MoorDyn and adding the HydroDyn module to the sample code, I was able to run the simulation except I am receiving an error in the middle of final computation stage.
The simulation stops at 12 second of 60 seconds with the following:
CalcOutput: IFW_UniformWind_CalcOutput: GetWindSpeed:Height must not be negative.
IFW_UniformWind_CalcOutput: Error calculating the wind speed at position (-7.804, -10.742, -8.45430E-02) in the wind-file coordinates.
I am using the same Inflowwind data that the original code is referring to (NRELOffshrBsline5MW_Inflowind.dat), so I am not sure what adjustment I need to make in order to complete the simulation.
I just want to compare the simulation results between the FAST-MoorDyn cooupling and FAST-OrcaFlex coupling.
Any comment on how to resolve this issue would be greatly appreciated.
Also, is there a publicly available simulation result run by FAST for this Load Case? Please let me know.
Thank you for your time.