Flow-Turbine Interaction CFD Analysis for Performance Evaluation of Vertical Axis Tidal Current Turbines (II)

수직축 조류 터빈 발전효율 평가를 위한 유동-터빈 연동 CFD 해석 (II)

  • Received : 2013.03.19
  • Accepted : 2013.06.10
  • Published : 2013.06.30


CFD (computational fluid dynamics) analyses that considered the dynamic interaction effects between the flow and a turbine were performed to evaluate the power output characteristics of two representative vertical-axis tidal-current turbines: an H-type Darrieus turbine and Gorlov helical turbine (GHT). For this purpose, a commercial CFD code, Star-CCM+, was utilized, and the power output characteristic were investigated in relation to the scale ratio using the relation between the Reynolds number and the lift-to-drag ratio. It was found that the power coefficients were significantly reduced when the scaled model turbine was used, especially when the Reynolds number was lower than $10^5$. The power output characteristics of GHT in relation to the twisting angle were also investigated using a three-dimensional CFD analysis, and it was found that the power coefficient was maximized for the case of a Darrieus turbine, i.e., a twisting angle of $0^{\circ}$, and the torque pulsation ratio was minimized when the blade covered $360^{\circ}$ for the case of a turbine with a twisting angle of $120^{\circ}$.


Flow-turbine interaction analysis;Computational fluid dynamics;Vertical axis tidal current turbine;H-type darrieus turbine;Gorlov helical turbine


  1. Gorlov, A.M., 1995. The Helical Turbine: a New Idea for Lowhead Hydropower. Hydro Rev., 14(5) 44-50.
  2. Hyun, B.S., Choi, D.H., Han, J.S., Jin, J.Y., 2012. Performance Analysis and Design of Vertical Axis Tidal Stream Turbine. Journal of Shipping and Ocean Engineering, 2, 191-200.
  3. Jung, H.J., Rhee, S.H., Song, M., Hyun, B.S., 2009. A Numerical Study of Unsteady Flow around a Vertical Axis Turbine for Tidal Current Energy Conversion. Journal of the Korean Society for Marine Environmental Engineering, 12(1), 9-14.
  4. Kim, J.M., Han, D.H. Chung, H., 2012, Field test for 100kW floating tidal power system. Proceedings of the Asian Wave and Tidal Energy Conference 2012.
  5. Korea Ocean Research and Development Institute (KORDI), 2011. Development of Utilization Technique for Tide and Tidal Current Energy. Final Report Submitted to the Ministry of Land, Transport and Maritime Affairs.
  6. Kroo, I., 2007. Applied Aerodynamics:A Digital Textbook. Desktop Aeronautics, Inc.
  7. Li, Y., Calisala, S.M., 2010. Modeling of Twin-turbine Systems with Vertical Axis Tidal Current Turbines: Part I-Power output. Ocean Engineering, 37(7), 627-637
  8. Shiono, M., Suzuki, K., Kiho, S., 2000. An Experimental Study of the Characteristics of a Darrieus Turbine for Tidal Power Generation. Electronic Engineering in Japan, 132(3), 781-787.
  9. Yi, J.-H., Oh, S.-H., Park, J.-S., Lee, K.-S., Lee, S.-Y., 2013. Flow- Turbine Interaction CFD Analysis for Performance Evaluation of Vertical Axis Tidal Current Turbines (I). Journal of Ocean Engineering and Technology, 27(3), 67-72.

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  1. Flow-Turbine Interaction CFD Analysis for Performance Evaluation of Vertical Axis Tidal Current Turbines (I) vol.27, pp.3, 2013,