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

被引：53

作者：

Taha, Zahari ^{[2
]}

Sugiyono ^{[1
,3
]}

Ya, T. M. Y. S. Tuan ^{[1
]}

Sawada, Tatsuo ^{[4
]}

机构：

[1] Univ Malaya, Ctr Prod Design & Mfg, Kuala Lumpur 50603, Malaysia

[2] Univ Malaysia Pahang, Dept Mfg Engn, Gambang Kuantan 26300, Pahang, Malaysia

[3] Gadjah Mada Univ, Dept Mech & Ind Engn, Yogyakarta 55281, Indonesia

[4] Keio Univ, Dept Mech Engn, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

APPLIED OCEAN RESEARCH | 2011年 / 33卷 / 04期

关键词：

Wells turbine; NACA0020 blade profile; Tip clearance; CFD; AIR TURBINE; POWER;

D O I：

10.1016/j.apor.2011.07.002

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

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. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：321 / 331

页数：11

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