Nonlinear Aeroelastic Analysis of 3D a MW-Class Wind Turbine Blade Using CFD and CMBD Coupling Method

In this study, aeroelastic response analyses have been conducted for a 3D MW-Class wind turbine blade model. The complex composite laminated blade rotates in the unsteady fluid. Advanced computational fluid dynamics (CFD) and computational multi-body dynamics (CMBD) coupling method has been develope...

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Bibliographic Details
Published in:Proceedings of the 10th International Conference 2009-10, Vol.1225, p.852-863
Main Authors: Kim, Dong-Man, Kim, Dong-Hyun, Kim, Yo-Han, Park, Kang-Kyun, Kim, Su-Hyun
Format: Article
Language:English
Subjects:
Aeroelasticity
Blades
Computation
Computational fluid dynamics
Computing time
Dynamic tests
Dynamics
Finite element method
Fluid flow
Fluid-structure interaction
Fluids
Joining
Mathematical analysis
Mathematical models
Navier-Stokes equations
Nonlinear dynamics
Nonlinearity
Rotating
Shape
Three dimensional
Time marching
Turbine blades
Turbulence
Turbulence models
Turbulent flow
Unsteady
Unsteady flow
Wind turbines
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Summary:In this study, aeroelastic response analyses have been conducted for a 3D MW-Class wind turbine blade model. The complex composite laminated blade rotates in the unsteady fluid. Advanced computational fluid dynamics (CFD) and computational multi-body dynamics (CMBD) coupling method has been developed in order to investigate aeroelastic responses of the rotating composite blade in unsteady fluid. Reynolds-Averaged Navier-Stokes (RANS) equations with k-E turbulence model were solved for unsteady flow problems of the rotating turbine blade model, and modal analyses of rotating wind-turbine blade have been conducted by using the general nonlinear finite element program. A fully implicit time marching scheme based on the Newmark direct integration method is used for computing the coupled aeroelastic governing equations of the 3D turbine blade for fluid-structure interaction (FSI) problems. Detailed dynamic responses and instantaneous velocity contour on the blade surfaces which considering flow-separation effects were presented to show the multi-physical phenomenon of the huge rotating wind-turbine blade model.
ISSN:0094-243X