Questions & Answers from Web Meeting #3

This forum is for discussion of the SWiFT benchmarks under IEA Wind Task 31 WakeBench

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Questions & Answers from Web Meeting #3

Postby Paula.Doubrawa » Tue Dec 18, 2018 3:00 pm

Q: Can the deadline for Phase 1 be extended?
A: Yes, we have extended the deadline to January 18, 2019.

Q: Do I need to participate in Phase 1?
A: The code calibration phase is optional. It's an opportunity to calibrate your inflow and wind turbine response before moving on to the wake analyses. This phase also seeks to work out any issues that participants may identify in the definition of the benchmarks and in the requested file formats.

Q: Will the LIDAR scanning pattern be provided?
A: Yes, it will be released soon as an official report by Sandia National Laboratories.The point of contact for this is Tommy Herges.

Q: Which wind turbine model can I trust?
A: The FAST7 model in the github repository was calibrated against measurements. The OpenFAST v2 model was calibrated as closely as possible to the FAST7 model. The only differences between these two have to do with different code in the AeroDyn modules.

Q: What kind of wind turbine measurements are publicly available for calibration of the wind turbine models?
A: The reference* below includes some figures that show measurements of the wind turbine response. Actual data files are planned to be released after the end of Phase 1 (scheduled for January 18, 2019).

* Christopher L. Kelley and Jonathan White, An Update to the SWiFT V27 Reference Model, Sandia report SAND2018-11893, 2018

Q: Can the atmospheric inflow time series be released?
A: Yes. The time series of the three-dimensional wind velocity vector at hub height upstream of the turbine will be released in the github repository by December 21, 2018.

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