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Open AccessJournal ArticleDOI

Numerical investigation of modified savonius wind turbine with various straight blade angle

Khairil Anwar, +3 more
- 27 Sep 2018 - 
- Vol. 41, Iss: 3, pp 38-42
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TLDR
In this article, the effects of the straight blade angle on the turbine performance were studied, and it was concluded that the turbine with a straight blade angles of 100° model gives the better performance at higher Tip Sped Ratio (TSR) than other models.
Abstract
The present paper aims to numerically investigate the two-dimensional flow analysis of modified Savonius wind turbine using computational fluid dynamics. The effects of the straight blade angle on the turbine performance were studied. Simulations based on the RANS equations and the SST-k-w turbulence model are used to simulate the airflow over the turbine blades. Both the static and dynamic simulations were performed. In the static simulation, the drag and lift coefficient on the Savonius turbine were directly calculated at every angular position, and the time-averaged moment and power coefficients were computed in each of the dynamic simulations. From the results, it can be concluded that the turbine with a straight blade angle of 100° model gives the better performance at higher Tip Sped Ratio (TSR) than other models.

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References
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Journal ArticleDOI

Wind tunnel performance data for two- and three-bucket Savonius rotors

TL;DR: In this article, a Savonius rotor wind turbine was tested in the Vought Corporation Systems Division 4.9- x 6.1m Low Speed Wind Tunnel to determine aerodynamic performance.
Journal ArticleDOI

Experimental investigations on single stage modified Savonius rotor

TL;DR: In this article, the effect of geometrical parameters on the performance of the rotors in terms of coefficient of static torque, coefficient of torque and coefficient of power was investigated in an open jet wind tunnel.
Journal ArticleDOI

Optimal blade shape of a modified Savonius turbine using an obstacle shielding the returning blade

TL;DR: In this article, the geometry of the blade shape (skeleton line) was optimized in the presence of the obstacle plate to increase the output power of a Savonius turbine.
Journal ArticleDOI

A double-step Savonius rotor for local production of electricity: a design study

TL;DR: In this article, the authors presented a study, carried out with the help of the French Agency of Innovation (ANVAR), which deals with the conception of a small Savonius rotor (i.e. of low power) for local production of electricity.
Journal ArticleDOI

Numerical investigation of conventional and modified Savonius wind turbines

TL;DR: In this article, the performance of a Savonius wind turbine with constant cross-sections is examined by means of quasi 2D flow predictions executed in ANSYS CFX, in a way that allows comparison with wind tunnel data presented in a related paper.
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