scholarly journals Hysteretic characteristics of Wells turbine in reciprocating flow.

1987 ◽  
Vol 7 (26) ◽  
pp. 153-156
Author(s):  
Kenji Kakeko ◽  
Toshiaki Setoguchi ◽  
Toshihiro Nakano ◽  
Fumihiro Koura ◽  
Masahiro Inoue
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics ◽  
Reciprocating Flow

scholarly journals Hysteretic characteristics of biplane wells turbine in reciprocating flow.

1988 ◽  
Vol 8 (30) ◽  
pp. 349-352
Author(s):  
Toshiaki SETOGUCHI ◽  
Kenji KANEKO ◽  
Hiromitsu HAMAKAWA ◽  
Masahiro INOUE
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics ◽  
Reciprocating Flow

scholarly journals Hysteretic characteristics of the biplane wells turbine in a reciprocating flow.

1989 ◽  
Vol 55 (512) ◽  
pp. 1153-1158
Author(s):  
Toshiaki SETOGUCHI ◽  
Kenji KANEKO ◽  
Hiromitsu HAMAKAWA ◽  
Masahiro INOUE
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics ◽  
Reciprocating Flow

scholarly journals Hysteretic characteristics of Wells turbine in reciprocating flow.

1987 ◽  
Vol 53 (496) ◽  
pp. 3699-3704 ◽  
Author(s):  
Masahiro INOUE ◽  
Kenji KANEKO ◽  
Toshiaki SETOGUCHI ◽  
Fumihiro KOURA
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics ◽  
Reciprocating Flow

scholarly journals Hysteresis on Wells Turbine Characteristics in Reciprocating Flow

1998 ◽  
Vol 4 (1) ◽  
pp. 17-24 ◽  
Author(s):  
T. Setoguchi ◽  
M. Takao ◽  
K. Kaneko
Keyword(s):  
Pressure Measurements ◽  
Blade Surface ◽  
Wells Turbine ◽  
Power Generator ◽  
Blade Thickness ◽  
Turbine Equipment ◽  
Sinusoidal Flow ◽  
Hysteretic Characteristics ◽  
Accelerating Flow ◽  
Reciprocating Flow

The Wells turbine for a wave power generator has hysteretic characteristics in a reciprocating flow, which results in the inaccurate prediction of performance in a quasisteady analysis. In order to clarify the hysteretic characteristics, an experimental investigation has been made by use of a newly devised turbine equipment in which a sinusoidal flow condition is simulated. The results have shown that hysteresis becomes more pronounced as solidity and blade thickness become larger, but it is insensitive to the Reynolds number and blade surface roughness. By means of pressure measurements on the blade surface, it is found that the hysteresis occurs due to different behavior of wakes between an accelerating flow and a decelerating flow.

Mechanism of Hysteretic Characteristics of Wells Turbine

2002 ◽  
Vol 2002.55 (0) ◽  
pp. 117-118
Author(s):  
Yoichi KINOUE ◽  
Toshiaki SETOGUCHI ◽  
Tae Ho Kim ◽  
Kenji KANEKO ◽  
Masahiro INOUE
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics

Hysteretic characteristics of Wells turbine for wave power conversion

2003 ◽  
Vol 28 (13) ◽  
pp. 2113-2127 ◽  
Author(s):  
T. Setoguchi ◽  
Y. Kinoue ◽  
T.H. Kim ◽  
K. Kaneko ◽  
M. Inoue
Keyword(s):  
Power Conversion ◽  
Wave Power ◽  
Wells Turbine ◽  
Wave Power Conversion ◽  
Hysteretic Characteristics

scholarly journals Mechanism of Hysteretic Characteristics of Wells Turbine.

2003 ◽  
Vol 69 (679) ◽  
pp. 610-616 ◽  
Author(s):  
Yoichi KINOUE ◽  
Toshiaki SETOGUCHI ◽  
Tae-Ho KIM ◽  
Kenji KANEKO ◽  
Masahiro INOUE
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics

Mechanism of Hysteretic Characteristics of Wells Turbine for Wave Power Conversion

2003 ◽  
Vol 125 (2) ◽  
pp. 302-307 ◽  
Author(s):  
Y. Kinoue ◽  
T. Setoguchi ◽  
T. H. Kim ◽  
K. Kaneko ◽  
M. Inoue
Keyword(s):  
Flow Separation ◽  
Power Conversion ◽  
Hysteretic Behavior ◽  
Dynamic Stall ◽  
Wave Power ◽  
Suction Surface ◽  
Wells Turbine ◽  
Flow Process ◽  
Wave Power Conversion ◽  
Hysteretic Characteristics

A Wells turbine for wave power conversion has hysteretic characteristics in a reciprocating flow. The counterclockwise hysteretic loop of the Wells turbine is opposite to the clockwise one of the well-known dynamic stall of an airfoil. In this paper, the mechanism of the hysteretic behavior was elucidated by an unsteady three-dimensional Navier-Stokes numerical simulation. It was found that the hysteretic behavior was associated with a streamwise vortical flow appearing near the blade suction surface. In the accelerating process of axial flow velocity, the vortex is intensified to enlarge the flow separation area on the blade suction surface. In the decelerating flow process, the flow separation area is reduced because of the weakened vortex. Therefore, the aerodynamic performance in the accelerating flow process is lower than in the decelerating flow process, unlike the dynamic stall. Based on the vortex theorem, the mechanism to vary the intensity of the vortex can be explained by the trailing vortices associated with the change in the blade circulation.

Hysteretic Characteristics of Biplane Wells Turbine

2004 ◽  
Vol 2004.57 (0) ◽  
pp. 261-262
Author(s):  
Mamun MOHAMMAD ◽  
Yoichi KINOUE ◽  
Toshiaki SETOGUCHI ◽  
Kenji KANEKO
Keyword(s):  
Wells Turbine ◽  
Hysteretic Characteristics
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