Proceedings ArticleDOI
Effect of Guide Vane Angle on Wells Turbine Performance
Paresh Halder,Abdus Samad +1 more
TLDR
In this article, a commercial code ANSYSCFX v14.0 was used for the simulations at different flow coefficients, different angles and a constant rotational speed, and the turbulence model was k-ω SST.Abstract:
Wells turbines are used in oscillating water column wave energy system and the turbine has a stagger angle of 90 o . Numerical analysis is performed to analyze the performance of the turbine in the present work. A commercial code ANSYSCFX ® v14.0 was used for the simulations at different flow coefficient, different angles and a constant rotational speed. The turbulence model was k-ω SST. Higher guide vane angle produced higher efficiency of the turbine and the efficiency (enhanced) change was contributed because of the vortex formation in different locations in the flow passage or near the blade surface.read more
Citations
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Journal ArticleDOI
Effect of Guide Vanes on the Performance of a Wells Turbine.
TL;DR: In this article, the effects of the gap between rotor and guide vane and the solidity of the guide vanes on the performance of a Wells turbine have been investigated by model testing.
Journal ArticleDOI
Optimal design of air turbines for oscillating water column wave energy systems: A review:
TL;DR: In this paper, an oscillating water column wave energy harvesting system uses pneumatic power to run a turbine and generate power, both reaction (mainly Wells turbine) and impulse type turbines are tested in oscilla.
Journal ArticleDOI
The Effect of Midplane Guide Vanes in a Biplane Wells Turbine
Tapas K. Das,Abdus Samad +1 more
TL;DR: In this paper, a concept of different orientations of GVs in between a two-row biplane wells turbine (BWT) was introduced and analyzed for the performance improvement, and the fluid flow was simulated numerically with a commercial software ANSYS CFX 16.1.
Book ChapterDOI
Wells Turbine as a Power Take-Off Mechanism for Wave Energy Converters
Tapas K. Das,Abdus Samad +1 more
TL;DR: A comprehensive review of the state-of-the-art of the Wells turbine is presented in this article to familiarize the reader with the state of the art of Wells turbine.
References
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Journal ArticleDOI
Analysis of Wells turbine design parameters by numerical simulation of the OWC performance
TL;DR: In this article, the authors investigated the influence of the turbine aerodynamic design on the overall plant performance, as affected by the turbine peak efficiency and the range of flow rates within which the turbine can operate efficiently.
Journal ArticleDOI
Accurate numerical simulation of a high solidity Wells turbine
TL;DR: In this article, the authors provided an accurate description of the steady three-dimensional flow field in a high solidity Wells turbine to be used in an oscillatory water column (OWC) device for wave energy conversion.
Journal ArticleDOI
Computational analysis of performance and flow investigation on wells turbine for wave energy conversion
TL;DR: In this article, the performance and aerodynamic analysis of the NACA 0021 constant chord blades of the Wells turbine with different flow coefficients were analyzed and the model was used to predict the turbine stall rate and the flow coefficient at which the turbine stalls.
Journal ArticleDOI
Computed effects of tip clearance on performance of impulse turbine for wave energy conversion
A. Thakker,T.S. Dhanasekaran +1 more
TL;DR: In this article, a 3-D model with tip clearance has been generated to predict the internal flow and performance of the turbine and it is found that the comparison between computed and experimental data is good, quantitatively and qualitatively.
Journal ArticleDOI
Detailed CFD Analysis of the Steady Flow in a Wells Turbine Under Incipient and Deep Stall Conditions
TL;DR: In this paper, the performance of a high solidity Wells turbine designed for an oscillating water column wave energy conversion device was evaluated by numerical simulations carried out by solving the Reynolds-averaged Navier-Stokes equations together with three turbulence models.
Related Papers (5)
Aerodynamic Performance of Contra-Rotating Wells Turbine For Wave Energy Conversion
S. Raghunathan,W.C. Beattie +1 more