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Numerical study of the flow passing through the rotor of a vertical axis wind turbine

conference contribution
posted on 16.04.2018, 14:02 by Ahmed Ahmedov, Milen Venev, Krasimir Tujarov
Savonius type wind turbine is the subject of the present study. The Savonius wind turbine has a relatively simple design, omnidirectional wind acceptance, excellent self-starting capabilities and stable operation under turbulent wind. The operation of the Savonius wind turbine is characterized by pronounced unsteadiness, due to the continuous change of the relative velocity acting on the blades. In order to gain deeper understanding over the ongoing processes during the turbine operation a numerical modelling of the flow passing through its rotor was carried out. Due to computational hardware and time limitations a 2D URANS approach was adopted. The k-ω SST turbulence model was chosen for the calculation of the vortex structures generation, dissipation and interactions. The k-ω SST combines the advantage of the k-ε model of excellent main flow modelling and the advantage of the k-ω model of excellent near-wall (blades) flow modelling. The obtained numerical data was postprocessed and the flow passing through the rotor was visualized at different angular positions. The aerodynamic theoretical characteristics of the Savonius wind turbine are obtained.

Funding

University of Ruse, Ruse, Bulgaria

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

56th Science Conference of Ruse University, Ruse, Bulgaria, 2017 Numerical Study of the Flow Passing Through the Rotor of a Vertical Axis Wind Turbine

Volume

56

Pages

104 - 110

Citation

AHMEDOV, A.S., VENEV, M. and TUJAROV, K., 2018. Numerical study of the flow passing through the rotor of a vertical axis wind turbine. IN: Proceedings of University of Ruse 56th Annual Scientific Conference: Thermotechnics, Hydro- and Pneumotechnics, Ecology and Environmental Protection. Ruse: University of Ruse, 56(Book 1.2), pp. 104-110.

Publisher

University of Ruse

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2018

Notes

This paper is in closed access.

ISSN

1311-3321

Language

en