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

Zahari, Taha and Sugiyono, . and T. M. Y. S., Tuan Ya and Sawada, Tatsuo (2011) Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion. Applied Ocean Research, 33 (4). pp. 33-4. ISSN 0141-1187. (Published)

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: Wells turbine; NACA0020 blade profile; Tip clearance; CFD
Subjects: T Technology > TS Manufactures
Faculty/Division: Faculty of Manufacturing Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 17 Oct 2019 01:00
Last Modified: 17 Oct 2019 01:00
URI: http://umpir.ump.edu.my/id/eprint/25930
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