"Presented at the 2021 AIAA SciTech Forum, January 11-21, 2021."
Bibliography
Includes bibliographical references (page 31).
Funding
National Renewable Energy Laboratory DE-AC36-08GO28308
Note
Description based on online resource; title from PDF title page (NREL, viewed Aug. 10, 2021).
Summary
This paper presents the results from the first IEA Wind Task 37 aerodynamic optimization case study. Eight participants applied their optimization tools to a purely aerodynamic problem and the results were compared. Overall, the different tools produced widely different designs, while there was better agreement in the improvement achieved. This highlights the fact that further investigation is needed to try to understand these differences and develop best practices. There were too many differences between the different analysis and optimization codes to determine the sources of these differences. However, several potential sources of discrepancy were identified for further investigation. One hypothesis is that one potential source of discrepancy is that the design problem itself is relatively flat in design directions of constant loading. This flatness would impact the convergence in the optimization, and at the same time mean that discrepancies in the design itself would be less severe.
