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Computational Fluid Dynamics Prediction of a Modified Savonius Wind Turbine with Novel Blade Shapes

Journal Article · · Energies
DOI:https://doi.org/10.3390/en8087915· OSTI ID:1986597
 [1];  [2];  [3];  [3]
  1. Northwestern Polytechnical Univ., Xi'an, Shaanxi (China); Florida Atlantic Univ., Boca Raton, FL (United States); Florida Atlantic University
  2. Northwestern Polytechnical Univ., Xi'an, Shaanxi (China)
  3. Florida Atlantic Univ., Boca Raton, FL (United States)
The Savonius wind turbine is a type of vertical axis wind turbine (VAWTs) that is simply composed of two or three arc-type blades which can generate power even under poor wind conditions. A modified Savonius wind turbine with novel blade shapes is introduced with the aim of increasing the power coefficient of the turbine. The effect of blade fullness, which is a main shape parameter of the blade, on the power production of a two-bladed Savonius wind turbine is investigated using transient computational fluid dynamics (CFD). Simulations are based on the Reynolds Averaged Navier-Stokes (RANS) equations with a renormalization group turbulent model. This numerical method is validated with existing experimental data and then utilized to quantify the performance of design variants. Results quantify the relationship between blade fullness and turbine performance with a blade fullness of 1 resulting in the highest coefficient of power, 0.2573. This power coefficient is 10.98% higher than a conventional Savonius turbine.
Research Organization:
Florida Atlantic Univ., Boca Raton, FL (United States)
Sponsoring Organization:
National Science Foundation of China (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office
Grant/Contract Number:
EE0004200
OSTI ID:
1986597
Journal Information:
Energies, Journal Name: Energies Journal Issue: 8 Vol. 8; ISSN 1996-1073
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

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Numerical Analysis of Turbulent Fluid Flow and Drag Coefficient for Optimizing the AUV Hull Design journal January 2014
Performance Analysis of a Helical Savonius Rotor with Shaft at 45° Twist Angle Using CFD journal March 2013

Cited By (2)

CFD study of Savonius wind turbine: 3D model validation and parametric analysis journal May 2017
Parameter Analysis of Savonius Hydraulic Turbine Considering the Effect of Reducing Flow Velocity journal December 2019

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