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Computational fluid dynamics analysis of a 0.6m, 0.6 hub-to-tip ratio impulse turbine with fixed guide vanes

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  • Thakker, Ajit
  • Hourigan, Fergal

Abstract

This paper presents the comparison of a three-dimensional Computational Fluid Dynamics (CFD) analysis with empirical performance data of a 0.6m Impulse Turbine with Fixed Guide Vanes used for wave energy power conversion. Pro-Engineer, Gambit and Fluent 6 were used to create a 3-D model of the turbine. A hybrid meshing scheme was used with hexahedral cells in the near blade region and tetrahedral and pyramid cells in the rest of the domain. The turbine has a hub-to-tip ratio of 0.6 and results were obtained over a wide range of flow coefficients. Satisfactory agreement was obtained with experimental results. The model yielded a maximum efficiency of approximately 54% as compared to a maximum efficiency of around 49% from experiment. A degree of insight into flow behaviour, not possible with experiment, was obtained. Sizeable areas of separation on the pressure side of the rotor blade were identified toward the tip. The aim of the work is to benchmark the CFD results with experimental data and to investigate the performance of the turbine using CFD and to with a view to integrating CFD into the design process.

Suggested Citation

  • Thakker, Ajit & Hourigan, Fergal, 2005. "Computational fluid dynamics analysis of a 0.6m, 0.6 hub-to-tip ratio impulse turbine with fixed guide vanes," Renewable Energy, Elsevier, vol. 30(9), pages 1387-1399.
    • Handle: RePEc:eee:renene:v:30:y:2005:i:9:p:1387-1399
    DOI: 10.1016/j.renene.2004.10.005
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    References listed on IDEAS

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    1. Maeda, H & Santhakumar, S & Setoguchi, T & Takao, M & Kinoue, Y & Kaneko, K, 1999. "Performance of an impulse turbine with fixed guide vanesfn2fn2Patent pending. for wave power conversion," Renewable Energy, Elsevier, vol. 17(4), pages 533-547.
    2. Setoguchi, T & Santhakumar, S & Maeda, H & Takao, M & Kaneko, K, 2001. "A review of impulse turbines for wave energy conversion," Renewable Energy, Elsevier, vol. 23(2), pages 261-292.
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    Cited by:

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    5. Pereiras, Bruno & López, Iván & Castro, Francisco & Iglesias, Gregorio, 2015. "Non-dimensional analysis for matching an impulse turbine to an OWC (oscillating water column) with an optimum energy transfer," Energy, Elsevier, vol. 87(C), pages 481-489.

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