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

doi:10.1016/j.apor.2011.07.002

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

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

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.

Original language	English
Pages (from-to)	321-331
Number of pages	11
Journal	Applied Ocean Research
Volume	33
Issue number	4
DOIs	https://doi.org/10.1016/j.apor.2011.07.002
Publication status	Published - 2011 Oct 1

Keywords

CFD
NACA0020 blade profile
Tip clearance
Wells turbine

ASJC Scopus subject areas

Ocean Engineering

Access to Document

10.1016/j.apor.2011.07.002

Fingerprint Dive into the research topics of 'Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion'. Together they form a unique fingerprint.

Cite this

@article{00a600e53707479cb3b685689bb74dd4,

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

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.",

keywords = "CFD, NACA0020 blade profile, Tip clearance, Wells turbine",

author = "Zahari Taha and Sugiyono and {Tuan Ya}, {T. M.Y.S.} and Tatsuo Sawada",

year = "2011",

month = oct,

day = "1",

doi = "10.1016/j.apor.2011.07.002",

language = "English",

volume = "33",

pages = "321--331",

journal = "Applied Ocean Research",

issn = "0141-1187",

publisher = "Elsevier BV",

number = "4",

}

TY - JOUR

T1 - Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion

AU - Taha, Zahari

AU - Sugiyono,

AU - Tuan Ya, T. M.Y.S.

AU - Sawada, Tatsuo

PY - 2011/10/1

Y1 - 2011/10/1

N2 - 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.

AB - 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.

KW - CFD

KW - NACA0020 blade profile

KW - Tip clearance

KW - Wells turbine

UR - http://www.scopus.com/inward/record.url?scp=80052914498&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052914498&partnerID=8YFLogxK

U2 - 10.1016/j.apor.2011.07.002

DO - 10.1016/j.apor.2011.07.002

M3 - Article

AN - SCOPUS:80052914498

VL - 33

SP - 321

EP - 331

JO - Applied Ocean Research

JF - Applied Ocean Research

SN - 0141-1187

IS - 4

ER -