Advanced SearchSearch Tips
Performance Estimation of a Tidal Turbine with Blade Deformation Using Fluid-Structure Interaction Method
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Performance Estimation of a Tidal Turbine with Blade Deformation Using Fluid-Structure Interaction Method
Jo, Chul-Hee; Hwang, Su-Jin; Kim, Do-Youb; Lee, Kang-Hee;
  PDF(new window)
The turbine is one of the most important components in the tidal current power device which can convert current flow to rotational energy. Generally, a tidal turbine has two or three blades that are subjected to hydrodynamic loads. The blades are continuously deformed by various incoming flow velocities. Depending on the velocities, blade size, and material, the deformation rates would be different that could affect the power production rate as well as turbine performance. Surely deformed blades would decrease the performance of the turbine. However, most studies of turbine performance have been carried out without considerations on the blade deformation. The power estimation and analysis should consider the deformed blade shape for accurate output power. This paper describes a fluid-structure interaction (FSI) analysis conducted using computational fluid dynamics (CFD) and the finite element method (FEM) to estimate practical turbine performance. The loss of turbine efficiency was calculated for a deformed blade that decreased by 2.2% with maximum deformation of 216mm at the blade tip. As a result of the study, principal causes of power loss induced by blade deformation were analysed and summarised in this paper.
Ocean renewable energy;Tidal current power;Horizontal axis tidal turbine;Blade deformation;Fluid-structure interaction method;
 Cited by
Bahaj A., Batten W. and McCann G., Experimental verifications of numerical predictions for the hydrodynamic performance of horizontal axis marine current turbines, Renewable Energy, 32 (15) (2007) 2479-2490. crossref(new window)

Baltazar J. and Campos J., Hydrodynamic Analysis of Horizontal Axis Marine Current Turbine with a Boundary Element Method, Proc. of the 27th International Conference on Ocean, Offshore and Arctic Engineering(OMAE), (2008).

Batten W.M.J., Bahaj A.S., Molland A.F. and Chaplin J.R., Hydrodynamics of Marine Current Turbines, Renewable Energy, 31 (2) (2006) 249-256. crossref(new window)

Fadhil B.M., Effect of Plies Stacking Sequence and Tube Geometry on the Crush Behavior of Tube under Low Velocity Impact-Numerical Study, Int. Journal of Mechanics and Applications, 3 (2) (2013) 44-51.

Faudot C. and Dahlhaug O.G., Tidal turbine blades: Design and dynamic loads estimation using CFD and blade element momentum theory, Proc. of the 30th International Conference on Ocean, Offshore and Arctic Engineering(OMAE), (2011).

Harrison M.E., Batten W.M.J., Myers L.E. and Bahaj A.S., A comparison between CFD simulations and experiments for predicting the far wake of horizontal axis tidal turbines, IET Renewable Power Generation, 4 (6) (2010) 613-617. crossref(new window)

Jo C.H., Kim K.S., Min K.H., Yang T.Y. and Lee H.S., Study on HAT Current Generation Rotor, Journal of Ocean Engineering and Technology, 16 (1) (2002) 78-82.

Jo C.H., Lee K.H. and Yim J.Y., A study on the interference effects for tidal current power rotors, Journal of Science China: Technological Sciences, 53 (11) (2010) 3094-3101. crossref(new window)

Mason-Jones A., O'Doherty T., O'Doherty D.M., Evans P.S. and Wooldridge P.S., Charaterisation of a HATT using CFD and ADCP site data, Proc. of the 10th World Renewable Energy Congress(WREC), (2008) 941-946.

Park S.W., Park S.H. and Rhee S.H., Fluid-Structure Interaction Analysis for Open Water Performance of 100 kW Horizontal Tidal Stream Turbine, Journal of Korean Society for marine Environment and Energy, 17 (1) (2014) 20-26. crossref(new window)