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 | |
| Publication status | Published - 2011 Oct |
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Keywords
- CFD
- NACA0020 blade profile
- Tip clearance
- Wells turbine
ASJC Scopus subject areas
- Ocean Engineering
Cite this
Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion. / Taha, Zahari; Sugiyono; Tuan Ya, T. M Y S; Sawada, Tatsuo.
In: Applied Ocean Research, Vol. 33, No. 4, 10.2011, p. 321-331.Research output: Contribution to journal › Article
}
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
Y1 - 2011/10
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
VL - 33
SP - 321
EP - 331
JO - Applied Ocean Research
JF - Applied Ocean Research
SN - 0141-1187
IS - 4
ER -