Abstract
This paper describes a new development aiming to deform multi-block structured viscous meshes during fluid–solid interaction simulations. The focus is put on the deformation of external aerodynamic configurations accounting for large structural displacements and 3D multi-million cells meshes. In order to preserve the quality of the resulting mesh, it is understood as a fictitious continuum during the deformation process. Linear elasticity equations are solved with a multigrid and parallelized solver, assuming a heterogeneous distribution of fictitious material Young modulus. In order to improve the efficiency of the system resolution an approximate initial solution is obtained prior to the elastic deformation, based on Radial Basis Functions and Transfinite interpolators. To validate the performances of the whole algorithm, the DTU-10MW reference offshore wind turbine described by Bak et al. is analyzed (Description of the DTU 10 MW reference wind turbine. Technical report. Technical University of Denmark Wind Energy, Roskilde, 2013).
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Acknowledgements
The authors acknowledge the European Commission (EC) for their research grant under the project FP7-PEOPLE-2012-ITN 309395 MARE-WINT (new MAterials and REliability in offshore WINd Turbines technology), see: http://marewint.eu/.
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Horcas, S.G., Debrabandere, F., Tartinville, B., Hirsch, C., Coussement, G. (2015). Hybrid Mesh Deformation Tool for Offshore Wind Turbines Aeroelasticity Prediction. In: Ferrer, E., Montlaur, A. (eds) CFD for Wind and Tidal Offshore Turbines. Springer Tracts in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-16202-7_8
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DOI: https://doi.org/10.1007/978-3-319-16202-7_8
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