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Volume 21 Issue 1
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2013  >  21(1): 001-5
SONG Bao-wei, YANG Chun, TIAN Wen-long. Influence of Bafflers on Savonius Impeller of Ocean Current Generator[J]. Journal of Unmanned Undersea Systems, 2013, 21(1): 001-5. doi: 10.11993/j.issn.1673-1948.2013.01.001
Citation: SONG Bao-wei, YANG Chun, TIAN Wen-long. Influence of Bafflers on Savonius Impeller of Ocean Current Generator[J]. Journal of Unmanned Undersea Systems, 2013, 21(1): 001-5. doi: 10.11993/j.issn.1673-1948.2013.01.001
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Influence of Bafflers on Savonius Impeller of Ocean Current Generator

doi: 10.11993/j.issn.1673-1948.2013.01.001

  • College of Marine Engineering, Northwestern Polytechnical University, Xi′an 710072, China

  • Received Date: 2012-10-10
  • Rev Recd Date: 2012-11-05
  • Publish Date: 2013-02-20
    Abstract
  • Savonius impeller is widely used in ocean current generator, which has the advantages of low cost and good starting characteristics but lower efficiency. In this study, a novel vertical axis turbine (VAT) is designed by adding three bafflers to a Savoinius blade to improve its power generation efficiency. The output characteristics of the VAT at different rotary speed are analyzed with commercial computational fluid dynamics (CFD) software FLUENT to under-stand the influence of the bafflers on the power generation performance of the turbine impeller. The two-dimensional unsteady flow of the impeller is computed by using sliding mesh, and the basic features of speed field, pressure field, etc. of the impeller under working condition are analyzed. The results show that the maximum averaged power generation coefficient of the propeller reaches 0.481 when the tip speed ratio λ=0.9, which is 10% to 20% higher than that of the Savonius impeller.

     

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    • References(7)
  • [1]
    Kamoji M A, Kedare S B, Prabhu S V. Experimental Investi-gations on Single Stage Modified Savonius Rotor[J]. Applied Energey, 2009, 86(7-8): 1064-1073.
    [2]
    Afungchui D, Kamoun B, Helali A, et al. The Unsteady Pressure Field and the Aerodynamic Performance of a Savonius Rotor Based on the Discrete Vortex Method[J]. Renewable Energy, 2010, 35(1): 307-313.
    [3]
    Saha U, Thotla S, Maity D. Optimum Design Configuration of Savonius Rotor Through Wind Tunnel Experiments[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2008, 96(8-9): 1359-1375.
    [4]
    Shigetomi A, Murai Y, Tasaka Y, et al. Interactive Flow Filed Around Two Savonius Turbines[J]. Renewable Energy, 2011, 36(2): 536-546.
    [5]
    Golecha K, Eldho T I, Prabhu S V. Influence of the Deflector Plate on the Performance of Modified Savonius Water Tur-bine[J]. Applied Energy, 2011, 88(9): 3207-3217.
    [6]
    Mohamed M, Janiga G, Pap E, et al. Optimization of Savonius Turbines Using an Obstacle Shielding the Returning Blade[J]. Renewable Energy, 2010, 35(11): 2618-2626.
    [7]
    Hayashi T, Li Y, Hara Y, et al. Wind Tunnel Tests on a Three-stage Out-phase Savonius Rotor[J]. JSME International Journal, 2005, 48(s): 9-16.
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