U.S. Department of Energy - Energy Efficiency and Renewable Energy

Comparison of Wind-Turbine Aeroelastic Codes Used for Certification: Preprint

NREL created aeroelastic simulators for horizontal-axis wind turbines accepted by Germanischer Lloyd (GL) WindEnergie GmbH for manufacturers to use for on-shore wind turbine certification.

Buhl, M. L., Jr.; Manjock, A.
National Renewable Energy Laboratory
Technology Testing & Certification
Utility-Scale Wind
Distributed Wind
Technical Report