Comparison of free vortex wake and blade element momentum results against large-eddy simulation results for highly flexible turbines under challenging inflow conditions

Shaler, Kelsey; Anderson, Benjamin; Martínez-Tossas, Luis A.; Branlard, Emmanuel; Johnson, Nick

doi:https://doi.org/10.5194/wes-8-383-2023

Articles | Volume 8, issue 3

https://doi.org/10.5194/wes-8-383-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wes-8-383-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 8, issue 3

Research article

|

24 Mar 2023

Research article |

| 24 Mar 2023

Comparison of free vortex wake and blade element momentum results against large-eddy simulation results for highly flexible turbines under challenging inflow conditions

Kelsey Shaler, Benjamin Anderson, Luis A. Martínez-Tossas, Emmanuel Branlard, and Nick Johnson

Data sets

Dataset for Comparison of OLAF, BEM, and SOWFA Turbine Response K. Shaler, B. Anderson, and L. T. Martinez-Tossas https://doi.org/10.5281/zenodo.7697586

Model code and software

openfast OpenFAST https://github.com/OpenFAST/openfast

Short summary

Free-vortex wake (OLAF) and low-fidelity blade-element momentum (BEM) structural results are compared to high-fidelity simulation results for a flexible downwind turbine for varying inflow conditions. Overall, OLAF results were more consistent than BEM results when compared to SOWFA results under challenging inflow conditions. Differences between OLAF and BEM results were dominated by yaw misalignment angle, with varying shear exponent and turbulence intensity causing more subtle differences.