Numerical simulation of the flow around oscillating wind turbine airfoils Part 2: Free vibrating airfoil
DOI:
https://doi.org/10.1260/1750-9548.2.4.387Abstract
The present paper is Part 2 of a two parts paper on flow around vibrating wind turbine airfoils. The first part of the paper dealt with a forced oscillating airfoil. Part 2 focuses on free vibrating airfoils. The flow induced vibrations on two airfoils used for wind turbine blades are investigated by applying a fluid structure interaction approach. A commercial Computational Fluid Dynamics (CFD) code is coupled to a computational structural program that solves the dynamic equations of the airfoil oscillations. The fluid governing equations are described in the Arbitrary Lagrangian Eulerian coordinates and solved with a moving mesh. A straightforward meshing technique is implemented in a subroutine called by the CFD code at each time step for updating the grid. The method is applied to a free pitch oscillating airfoil and to combined pitch and vertical oscillations known as the flutter instability
References
Leishman, J.G., Challenges in modelling the unsteady aerodynamics of wind turbines, AIAA paper N° 2002-0037, 2002.
Riziotis V.A., Voutsinas S.G. Politis E.S. and Chaviaropoulos, Investigation of the stability bounds of wind turbines in view of passive instability suppression, EWEC, Athens, Greece, 2006. https://doi.org/10.1002/we.241
Rasmussen, F., Hansen, M.H., Thomsen, K., Larsen, T.J., Bertagnolio, F., Johansen, J., Madsen, H.A., Bak, C. and Hansen, A.M., Present Status of Aeroelasticity of Wind Turbines, Wind Energy, 2003, vol. 6, 213-228. https://doi.org/10.1002/we.98
Souli, M., Ouahsine, A., Lewin L., ALE formulation for Fluid Structure Interaction problems, Comput. Methods Appl. Mech. Engrg., 2000, vol. 190, 659-675. https://doi.org/10.1016/s0045-7825(99)00432-6
Longatte, E., Bendjeddou, Z. and Souli, M., Methods for numerical study of tube bundle vibrations in cross-flows, Journal of Fluids and Structures, 2003, vol. 18, 513-528. https://doi.org/10.1016/j.jfluidstructs.2003.08.010
Kamakoti, R. and Shyy, W., Fluid - structure interaction for aeroelastic applications, Progress in Aerospace Sciences, 2004, vol. 40, 535-558. https://doi.org/10.1016/j.paerosci.2005.01.001
Farhat, C. and Geuzaine, P., Design and analysis of robust ALE time-integrators for the solution of unsteady flow problems on moving grids, Comput. Methods Appl. Mech. Engrg., 2004, vol. 193, 4073-4095. https://doi.org/10.1016/j.cma.2003.09.027
Chen, X.Y. and Zha, G.C., Fully coupled fluid - structural interactions using an efficient high resolution upwind scheme, J. Fluids and structures, 2005, 1105-1125. https://doi.org/10.1016/j.jfluidstructs.2005.02.011
Bertagnolio, F., Sorensen, N.N., Johansen, J., Politis, E.S., Nikolaou I.G. and Chaviaropoulos P.K., Wind turbine blade aerodynamics and aeroelasticity (KNOW-BLADE), RISOE report N° RIS-R-1492 (EN), 2004.
Svacek, P. Feistauer, M. and Horacek, J., Numerical simulation of flow induced airfoil vibrations with large amplitudes, J. Fluids and Structures, 2007, vol. 23, pp. 391-411. https://doi.org/10.1016/j.jfluidstructs.2006.10.005
Guerri O., Bouhadef K. and Harhad A., Turbulence flow simulation of the NREL S809 airfoil, Wind Engineering, 2006, pp. 287-301. https://doi.org/10.1260/030952406779295471
Guerri, O., Hamdouni, A. and Sakout, A. Flow Induced Vibrations on a wind turbine airfoil. Part 1: Forced oscillating airfoil, Int. J. Multiphysics, vol.2, pp. 367-385. https://doi.org/10.1260/1750-9548.2.4.367
Abouri, D., Parry, A., Hamdouni, A. and Longatte E., A stable Fluid - Structure - Interaction algorithm: Application to industrial problems. ASME J. Pressure Vessel Technology, 2006, vol. 128, pp. 516-524. https://doi.org/10.1115/1.2349560
Souli M. and Zolesio J.P., Arbitrary Lagrangian - Eulerian and free surface methods in fluid mechanics, Comput. Methods Appl. Mech. Engrg. , 2001, vol. 191, pp. 451-466. https://doi.org/10.1016/s0045-7825(01)00313-9
Placzek, A., Sigrist, J.F. and Hamdouni, A., Numerical simulation of an oscillating cylinder in a cross-flow at low Reynolds number: Forced and free oscillations, to be published in Computers and Fluids. https://doi.org/10.1016/j.compfluid.2008.01.007
Johansen, J., Unsteady airfoil flows with application to aeroelastic stability, RISO report N° R-1116 (EN), 1999.
Tinar, E. and Cetiner, O., Acceleration data correlated with PIV images for self-induced vibrations of an airfoil, Exp. in Fluids, 2006, vol. 41, pp. 201-12. https://doi.org/10.1007/s00348-006-0136-7
Liberge, E., Benaouicha, M., Hamdouni, A., Proper orthogonal7 decomposition investigation in fluid structure interaction, European Journal of Computational Mechanic, 2007, vol. 16, pp. 401-418. https://doi.org/10.3166/remn.16.401-418
Liberge, E., Benaouicha, M., Hamdouni, A., Low order dynamical system for fluid-rigid body interaction problem using POD method, Int. Jnl. of Multiphysics, 2008, vol. 2, 59-81. https://doi.org/10.1260/175095408784300243
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