IEA 15MW TE Reiniforcement

Wind & Water Airfoils
1

Hi All,

I am working with the tabular data for the IEA 15MW turbine, and I am confused by the values of the trailing edge reinforcement width in the tabular file, shown below

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Both the suction side and pressure side are showing increasing values as well as negative values at the early locations, and the units show meters which would make it larger than the max. chord of the blade. Can anyone explain if these values are incorrect or if I am just misinterpreting? Thank you.

-Max

2

Hi Max,

there seems to be an issue with the data in those columns. Thanks for highlighting it. @Garrett.Barter and I briefly discussed how to fix it, but you caught us in an unfortunate time: yesterday we released WISDEM v4.0.0, which implements windIO v2.0, and the python script that generates that excel is now outdated. While we find the time to upgrade the python script and debug the data in those columns, I’d recommend referring to the yaml file describing the turbine. The file is here WISDEM/examples/02_reference_turbines/IEA-15-240-RWT.yaml at master · WISDEM/WISDEM · GitHub and the data structure is documented here windIO: a community-focused data I/O format for wind energy systems — windIO v2.0-alpha documentation . If you are looking at the widths of those reinforcements, you find it here WISDEM/examples/02_reference_turbines/IEA-15-240-RWT.yaml at b9182f17291c0c1988ffeb28f7090ffbfcd9248b · WISDEM/WISDEM · GitHub for the suction side and here WISDEM/examples/02_reference_turbines/IEA-15-240-RWT.yaml at b9182f17291c0c1988ffeb28f7090ffbfcd9248b · WISDEM/WISDEM · GitHub for the pressure side. On both sides it’s 0.75m between 10% and 80% along span. Thickness is here WISDEM/examples/02_reference_turbines/IEA-15-240-RWT.yaml at b9182f17291c0c1988ffeb28f7090ffbfcd9248b · WISDEM/WISDEM · GitHub and here WISDEM/examples/02_reference_turbines/IEA-15-240-RWT.yaml at b9182f17291c0c1988ffeb28f7090ffbfcd9248b · WISDEM/WISDEM · GitHub

3

Hi Pietro,

Thank you very much for your response and I appreciate your direction. Just so I understand, there is no linear increment/decrement, just a uniform 0.75m from 10-80%?

4

Yes. And please note that the blade of the IEA15 never went through a detailed design check before publication. Two external partners ran detailed FE studies, and those are listed in the readme