Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Effect of Blade Angle on the Performance of a Cross-Flow Hydro Turbine

  • Choi, Young-Do (Korea Maritime University, Industry-Academic Cooperation Foundation) ;
  • Lim, Jae-Ik (Korea Marine Equipment Research Institute) ;
  • Kim, You-Taek (Korea Maritime University, Department of Marine System Engineering) ;
  • Lee, Young-Ho (Korea Maritime University, Division of Mechanical and Information Engineering)
  • Published : 2008.05.31
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Abstract

In order to improve the performance of cross-flow hydro turbine, detailed examination of the effect of the turbine configuration on the performance is needed necessarily. Therefore, this study is aimed to investigate the effect of blade angle on the performance of the cross-flow hydro turbine. Analysis of the turbine performance with the variation of the blade angle has been made by using a commercial CFD code. The results show that inlet and outlet angles of runner blade give considerable effect on the performance of the turbine. Pressure on the surface of the runner blade changes remarkably by the blade angle both at the Stages 1 and 2. Moreover, relatively small blade inlet angle is effective to produce higher value of output power. Recirculating flow in the runner passage causes remarkable hydraulic loss.

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References

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