Development and Validation of a New Blade Element Momentum Skewed-Wake Model within AeroDyn: Preprint

Jason Jonkman, S. Ning, Rick Damiani

Research output: Contribution to conferencePaper

Abstract

Blade element momentum methods, though conceptually simple, are highly useful for analyzing wind turbines aerodynamics and are widely used in many design and analysis applications. A new version of AeroDyn is being developed to take advantage of new robust solution methodologies, conform to a new modularization framework for National Renewable Energy Laboratory's FAST, utilize advancedskewed-wake analysis methods, fix limitations with previous implementations, and to enable modeling of highly flexible and nonstraight blades. This paper reviews blade element momentum theory and several of the options available for analyzing skewed inflow. AeroDyn implementation details are described for the benefit of users and developers. These new options are compared to solutions from theprevious version of AeroDyn and to experimental data. Finally, recommendations are given on how one might select from the various available solution approaches.
Original languageAmerican English
Number of pages20
StatePublished - 2014
EventAIAA Science and Technology Forum and Exposition 2015 - Kissimmee, Florida
Duration: 5 Jan 20159 Jan 2015

Conference

ConferenceAIAA Science and Technology Forum and Exposition 2015
CityKissimmee, Florida
Period5/01/159/01/15

NREL Publication Number

  • NREL/CP-5000-63217

Keywords

  • AERODYN
  • blade element momentum
  • fast
  • skewed wake
  • unsteady aerodynamics experiment (UAE)
  • validation

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