Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30184
Performance Prediction of a 5MW Wind Turbine Blade Considering Aeroelastic Effect

Authors: Dong-Hyun Kim, Yoo-Han Kim

Abstract:

In this study, aeroelastic response and performance analyses have been conducted for a 5MW-Class composite wind turbine blade model. Advanced coupled numerical method based on computational fluid dynamics (CFD) and computational flexible multi-body dynamics (CFMBD) has been developed in order to investigate aeroelastic responses and performance characteristics of the rotating composite blade. Reynolds-Averaged Navier-Stokes (RANS) equations with k-ω SST turbulence model were solved for unsteady flow problems on the rotating turbine blade model. Also, structural analyses considering rotating effect have been conducted using the general nonlinear finite element method. A fully implicit time marching scheme based on the Newmark direct integration method is applied to solve 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.

Keywords: Computational Fluid Dynamics (CFD), Computational Multi-Body Dynamics (CMBD), Reynolds-averageNavier-Stokes (RANS), Fluid Structure Interaction (FSI), FiniteElement Method (FEM)

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1334628

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2365

References:


[1] S. Streiner, E. Kramer, A. Eulitz, and P. Armbruster, "Aeroelastic Analysis of Wind Turbines Applying 3D CFD Computational Results", Journal of Physics, 2007,Conference series 75.
[2] A. Ahlstrom, "Aeroelastic Simulation of Wind Turbine Dynamics", Doctoral Thesis from Royal Institute of Technology Department of Mechanics, Sweden, 2005.
[3] A. Ahlstrom, "Aeroelastic FE Modeling of Wind Turbine Dynamics", Doctoral Thesis from Royal Institute of Technology Department of Mechanics, Sweden, 2005.
[4] J. M. Jonkman, and P. D. Sclavounos, "Development of Fully Coupled Aeroelastic and Hydrodynamic Models for Offshore Wind Turbines", ASME Wind Energy Symposium, 2006.
[5] I. Dobrev, and F. Massouh, "Fluid-structure interaction in the case of a wind turbine rotor", 18th Congrès Fran├ºais de Mécanique, 2007.
[6] Y. H. Kim, D. H. Kim, Y. S. Kim, and S. H. Kim, "Comparison Study of Viscous Flutter Boundary for the AGARD 445.6 Wind Using Different Turbulent Boundary Layer Models", The Korean Society of Mechanical Engineers 2009.
[7] D. H. Kim, Y. S. Kim, D. H. Kim, Y. H. Kim, and S. H. Kim, "Coupled Aeroelastic Analysis of a 3D Wind Turbine Blade Considering Rotating Flow Separation Effects:, 9th World Wind Energy Conference, 2009.