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A Comparison of Panel Method and RANS Calculations for a Horizontal Axis Marine Current Turbine

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Abstract

In this work, a comparison between results of a panel method and a RANS solver is made for a horizontal axis marine current turbine in uniform inflow conditions. The panel method calculations were made with panel code PROPAN (Baltazar, On the modelling of the potential flow about wings and marine propellers using a boundary element method. Ph.D. thesis, Instituto Superior Técnico, 2008). A vortex pitch wake alignment model is considered for the blade wake. The RANS calculations were carried out with RANS code ReFRESCO (http://www.marin.nl/web/Facilities-Tools/CFD/ReFRESCO.htm). A comparison of the blade pressure distributions, wake geometry and thrust and power coefficients is made. A reasonable to good agreement of the blade distribution and turbine forces is seen between the codes. Comparison of the numerical calculations with experimental performance data available in the literature is also presented. In general, the trend of the thrust and power coefficients is well captured by the numerical methods.

Keywords

  • Turbine Blade
  • Turbine Rotor
  • Panel Method
  • Marine Propeller
  • Blade Wake

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Notes

  1. 1.

    Actually, a negative thrust force or drag.

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Acknowledgements

The authors acknowledge the use of MARIN code ReFRESCO in performing the current RANS computations. The authors would like to thank Prof. Luis Eça for his comments and suggestions, which helped to improve the manuscript. The authors also acknowledge the assistance of Mr. Joseph Cherroret in the numerical computations and post-processing analysis of the results.

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Correspondence to J. Baltazar .

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Baltazar, J., Falcão de Campos, J.A.C. (2015). A Comparison of Panel Method and RANS Calculations for a Horizontal Axis Marine Current Turbine. 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_11

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  • DOI: https://doi.org/10.1007/978-3-319-16202-7_11

  • Publisher Name: Springer, Cham

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