scholarly journals A Study on Fluidic Diode for Wave Energy Conversion-Effect of Bypass Geometry on the Turbine Performance

2020 ◽  
Vol 10 (03) ◽  
pp. 270-278
Author(s):  
Keito Matsumoto ◽  
Manabu Takao ◽  
Shinya Okuhara ◽  
Miah Md. Ashraful Alam ◽  
Yoichi Kinoue
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Wave Energy Conversion ◽  
Turbine Performance ◽  
Fluidic Diode

A Study on Fluidic Diode for Wave Energy Conversion

2019 ◽  
Vol 2019 (0) ◽  
pp. OS4-04
Author(s):  
Keito MATSUMOTO ◽  
Manabu TAKAO ◽  
Shinya OKUHARA ◽  
M. M. Ashraful ALAM ◽  
Yoichi KINOUE
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Wave Energy Conversion ◽  
Fluidic Diode

Comprehensive and synergistic analysis of geometry effect on an axial turbine performance for wave energy conversion

2021 ◽  
Vol 233 ◽  
pp. 109212
Author(s):  
Ahmed T.M. Kotb ◽  
Mohamed A.A. Nawar ◽  
Rafea Mohamed Abd El Maksoud ◽  
Mohamed H. Mohamed
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Wave Energy Conversion ◽  
Axial Turbine ◽  
Geometry Effect ◽  
Turbine Performance

A 3D Unsteady Analysis of a Wells Turbine in a Sea-Wave Energy Conversion Device

2003 ◽  
Author(s):  
S. M. Camporeale ◽  
M. Torresi ◽  
G. Pascazio ◽  
B. Fortunato
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Flow Behavior ◽  
Test Case ◽  
3D Analysis ◽  
Wave Energy Conversion ◽  
Wells Turbine ◽  
Turbine Performance ◽  
Flow Past ◽  
Sea Wave

A Wells turbine designed for power generation in an innovative OWC (Oscillating Water Column) device for sea-wave energy conversion is investigated. This work aims to predict the turbine performance under a continuously variable reciprocating flow due to the action of the sea waves. When the amplitude of the oscillating flow reaches high values, stall occurs around the blades with a drop in the turbine performance. CFD simulation has been carried out aiming to provide an insight of flow behavior over the blades approaching these large amplitude flow conditions. Three test cases, preliminarily examined in order to assess the capability of the numerical methods, are presented and discussed: the first test-case concerns the 2D unsteady turbulent flow past a symmetrical airfoil undergoing oscillating pitching motion; the second test case concerns the 3D analysis of a high solidity Wells turbine in presence of different constant axial fluxes; the third test case concerns the 3D analysis of a high solidity Wells turbine in presence of an oscillating axial flux. Finally the flow past the low solidity Wells turbine rotor is simulated. The analysis has been performed by considering the flow to be unsteady, incompressible and viscous, while turbulence was modeled using the one-equation Spalart Allmaras model or the two-equations k-ω model.

Heterogeneous comparative effects of casing grooves on a submersible axial turbine performance for wave energy conversion

2021 ◽  
Vol 225 ◽  
pp. 108812
Author(s):  
M.A.A. Nawar ◽  
H.S. Abdel Hameed ◽  
A. Ramadan ◽  
M.H. Mohamed ◽  
R.M. Abd El-Maksoud
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Wave Energy Conversion ◽  
Axial Turbine ◽  
Turbine Performance

Development of Fluidic Diode for Wave Energy Conversion

2019 ◽  
Vol 2019.24 (0) ◽  
pp. C221
Author(s):  
Manabu TAKAO ◽  
Keito MATSUMOTO ◽  
Shinya OKUHARA ◽  
M. M. Ashraful ALAM
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Wave Energy Conversion ◽  
Fluidic Diode

Experimental Study of Fluidic Diode for Wave Energy Conversion

2018 ◽  
Vol 2018.23 (0) ◽  
pp. E132
Author(s):  
Shinya OKUHARA ◽  
Masato ITOGA ◽  
Manabu TAKAO ◽  
Ashraful ALAM ◽  
Yoichi KINOUE
Keyword(s):  
Experimental Study ◽  
Energy Conversion ◽  
Wave Energy ◽  
Wave Energy Conversion ◽  
Fluidic Diode
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