Differences in steady-state final values and waveforms of loads between OpenFAST and my model which based on OpenFAST occoured

[studidi]

Dear seniors
I am a student majoring in wind power research.When I used the BEM method in the reference provided by OpenFAST for modeling in MATLAB, the results were different from those of OpenFAST. I would like to inquire about possible sources of error and whether there are any other reference materials that can be referenced.

[jjonkman]

Dear @studidi,

You haven't provided much information to comment on, but I see that you are using ElastoDyn output RotThrust rather than AeroDyn output RtAeroFxh. For the difference between these two outputs, see my post dated Feb 27, 2020 in the following topic on our forum, which may explain the difference you are seeing: https://forums.nrel.gov/t/nrel-5-mw-reference-turbine-cp-cq-ct-coefficients/456.

Best regards,