Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion

Zahari Taha, Sugiyono, T. M.Y.S. Tuan Ya, Tatsuo Sawada

研究成果: Article

30 引用 (Scopus)

抜粋

The performance of a Wells turbine with various non-uniform tip clearances was investigated using computational fluid dynamics (CFD). The investigation was performed on numerical models of a NACA0020 blade profile under steady flow conditions. The performance of turbines with uniform and non-uniform tip clearances was compared. The results were also compared with experimental results in literature. It was shown that the performance of turbine with non-uniform tip clearance is similar with that of turbine with uniform one in terms of torque coefficient, input power coefficient, and efficiency. However, the turbine with non-uniform tip clearance seems to have a preferable overall performance. An investigation on the flow-field around the turbine blade was performed in order to explain the phenomena.

元の言語English
ページ(範囲)321-331
ページ数11
ジャーナルApplied Ocean Research
33
発行部数4
DOI
出版物ステータスPublished - 2011 10 1

ASJC Scopus subject areas

  • Ocean Engineering

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