BeamDyn: A High-Fidelity Wind Turbine Blade Solver in the FAST Modular Framework: Preprint

Jason Jonkman, Michael Sprague, Nick Johnson, Sylvia Motazedi

Research output: Contribution to conferencePaper


BeamDyn, a Legendre-spectral-finite-element implementation of geometrically exact beam theory (GEBT), was developed to meet the design challenges associated with highly flexible composite wind turbine blades. In this paper, the governing equations of GEBT are reformulated into a nonlinear state-space form to support its coupling within the modular framework of the FAST wind turbine computer-aidedengineering (CAE) tool. Different time integration schemes (implicit and explicit) were implemented and examined for wind turbine analysis. Numerical examples are presented to demonstrate the capability of this new beam solver. An example analysis of a realistic wind turbine blade, the CX-100, is also presented as validation.
Original languageAmerican English
Number of pages19
StatePublished - 2015
EventSciTech 2015 - Kissimmee, Florida
Duration: 5 Jan 20159 Jan 2015


ConferenceSciTech 2015
CityKissimmee, Florida

NREL Publication Number

  • NREL/CP-5000-63165


  • computer-aided engineering tools
  • fast
  • NREL
  • wind turbine aerodynamics
  • wind turbine design and analysis


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