Flow field and performance study of vertical axis Savonius type SST wind turbine

Article

Al-Faruk, Abdullah and Sharifian, Ahmad. 2017. "Flow field and performance study of vertical axis Savonius type SST wind turbine." Energy Procedia. 110, pp. 235-242. https://doi.org/10.1016/j.egypro.2017.03.133
Article Title

Flow field and performance study of vertical axis Savonius type SST wind turbine

ERA Journal ID210411
Article CategoryArticle
AuthorsAl-Faruk, Abdullah (Author) and Sharifian, Ahmad (Author)
Journal TitleEnergy Procedia
Journal Citation110, pp. 235-242
Number of Pages8
Year2017
PublisherElsevier
Place of PublicationNetherlands
ISSN1876-6102
Digital Object Identifier (DOI)https://doi.org/10.1016/j.egypro.2017.03.133
Web Address (URL)http://linkinghub.elsevier.com/retrieve/pii/S1876610217301637
Abstract

It has been suggested that waste heats or naturally available heat sources can be utilized to produce swirling flow by a design similar to that of split channels which is currently used to initiate fire whirls in laboratories. A new hybrid power system has been proposed combining the conventional Savonius wind turbine and split channel mechanisms. Previous computational and experimental works indicate a performance improvement in the new hybrid design (named as swirling Savonius turbine, SST) compared to the conventional Savonius turbine. However, the lack of detailed descriptions of the flow field around the swirling
Savonius turbine inhibits complete understanding of performance of the hybrid power system. The aim of this study is to numerically explore the three-dimensional unsteady flow around the rotor, and develop a simulation method for predicting their aerodynamic performance using control volume based CFD package of ANSYS CFX. Sliding mesh feature of CFX allowed to solve the motion of the moving blades. Numerical simulations results of SST were compared with the experimental results. A discussion on the detailed flow field characteristics, including velocity vector, velocity streamlines, pressure distribution, vorticity analysis, and examination of power and torque coefficients behavior are presented.

Keywordswind energy; Savonius wind turbine; split channel; swirling flow; power coefficient; CFD
ANZSRC Field of Research 2020401201. Aerodynamics (excl. hypersonic aerodynamics)
401703. Energy generation, conversion and storage (excl. chemical and electrical)
Public Notes

Part of special issue: 1st International Conference on Energy and Power, ICEP2016, 14-16 December 2016, RMIT
University, Melbourne, Australia.
© 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/)

Byline AffiliationsComputational Engineering and Science Research Centre
Institution of OriginUniversity of Southern Queensland
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