Two-way Fluid-Structure Interaction Simulation of a Micro Horizontal Axis Wind Turbine

  • Yi-Bao Chen
  • Zhi-Kui Wang
  • Gwo-Chung Tsai
Keywords: fluid-structure interaction, flow field domain, dynamical analyses, grid convergence


A two-way Fluid-Structure Interaction (FSI) analyses performed on a micro horizontal axis wind turbine (HAWT) which coupled the CFX solver with Structural solver in ANSYS Workbench was conducted in this paper. The partitioned approach-based non-conforming mesh methods and the k-ε turbulence model were adopted to perform the study. Both the results of one-way and two-way FSI analyses were presented and compared with each other, and discrepancy of the results, especially the mechanical properties, were analysed. Grid convergence which is crucial to the results was performed, and the relationship between the inner flow field domain (rotational domain) and the number of grids (number of cells, elements) was verified for the first time. Dynamical analyses of the wind turbine were conducted using the torque as a reference value, to verify the rationality of the model which dominates the accuracy of results. The optimal case was verified and used to conduct the study, thus, the results derived from the simulation of the FSI are accurate and credible.


P. D. Clausen and D. H. Wood, "Research and development issues for small wind turbines," Renewable Energy, vol. 16.1, pp. 922-927, 1999.

R. K. Singh and M. R. Ahmed, "Blade design and performance testing of a small wind turbine rotor for low wind speed applications," Renewable Energy, vol. 50, pp. 812-819, 2013.

A. K. Wright and D. H. Wood, "The starting and low wind speed behavior of a small horizontal axis wind turbine," Journal of Wind Engineering and Industrial Aerodynamics, vol. 92, pp. 1265-1279, 2004.

F.-K. Benra, H. J. Dohmen, J. Pei, S. Schuster, and B. Wan, "A Comparison of One-Way and Two-Way Coupling Methods for Numerical Analysis of Fluid-Structure Interactions," Journal of Applied Mathematics, vol. 2011, pp. 1-16, 2011.

V. Jean-Mark, D. Pascal, H. Charles & L. Benoit, "Strong coupling algorithm to solve fluid-structure interaction problems with a staggered approach," Report, Open Engineering SA, 2009.

G. Hou, J. Wang, and A. Layton, "Numerical Methods for Fluid-Structure Interaction - A Review," Communications in Computational Physics, vol. 12, pp. 337-377, 2012.

R. F. Nicholls-Lee, S. R. Turnock, and S. W. Boyd, "Application of bend-twist coupled blades for horizontal axis tidal turbines," Renewable Energy, vol. 50, pp. 541-550, 2013.

S. S. Khalid, Zhiguang, J., Fuding, T., Liang, Z., & Chaudhry, A. Z. , "CFD Simulation of Vertical Axis Tidal Turbine Using Two-W ay Fluid Structure Interaction Method.pdf," In Applied Sciences and Technology, 10th International Bhurban Conference on. IEEE, pp. 286-291, 2013.

Y. Bazilevs, M. C. Hsu, and M. A. Scott, "Isogeometric fluid-structure interaction analysis with emphasis on non-matching discretizations, and with application to wind turbines," Computer Methods in Applied Mechanics and Engineering, vol. 249-252, pp. 28-41, 2012.

M.-C. Hsu and Y. Bazilevs, "Fluid–structure interaction modeling of wind turbines: simulating the full machine," Computational Mechanics, vol. 50, pp. 821-833, 2012.

ANSYS, Inc, ANSYS Mechanical APDL Theory Reference, ANSYS, Inc, USA, 2012.

M. Nabi and R. Al-Khoury, "An efficient finite volume model for shallow geothermal systems—Part II: Verification, validation and grid convergence," Computers & Geosciences, vol. 49, pp. 297-307, 2012.

Y.-F. Wang and M.-S. Zhan, "3-Dimensional CFD simulation and analysis on performance of a micro-wind turbine resembling lotus in shape," Energy and Buildings, vol. 65, pp. 66-74, 2013.

Y. Bazilevs, M. C. Hsu, J. Kiendl, R. Wüchner, and K. U. Bletzinger, "3D simulation of wind turbine rotors at full scale. Part II: Fluid-structure interaction modeling with composite blades," International Journal for Numerical Methods in Fluids, vol. 65, pp. 236-253, 2011.

How to Cite
Y.-B. Chen, Z.-K. Wang, and G.-C. Tsai, “Two-way Fluid-Structure Interaction Simulation of a Micro Horizontal Axis Wind Turbine”, Int. j. eng. technol. innov., vol. 5, no. 1, pp. 33-44, Jan. 2015.