CFD modeling of a ducted Savonius wind turbine for the evaluation of the blockage effects on rotor performance
Autor: | Stefano Mauro, Michele Messina, Sebastian Brusca, Rosario Lanzafame |
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Rok vydání: | 2019 |
Předmět: |
Wave energy converter
Wave energy 020209 energy Oscillating Water Column Ducted Oscillating water column 02 engineering and technology Computational fluid dynamics Savonius 0202 electrical engineering electronic engineering information engineering 0601 history and archaeology Duct (flow) Renewable Energy Subsonic and transonic wind tunnel CFD Renewable Energy Sustainability and the Environment Sustainability and the Environment 060102 archaeology business.industry Rotational speed 06 humanities and the arts Savonius wind turbine Flow velocity Environmental science business Marine engineering |
Zdroj: | Renewable Energy. 141:28-39 |
ISSN: | 0960-1481 |
Popis: | The idea of investigating the fluid dynamic behavior of a ducted Savonius wind turbine derives from the research about the improvements of Oscillating Water Column Wave Energy Converters in which the air is forced to flow back and forth inside a duct. The Savonius rotors appeared to be very suitable for this kind of applications for many reasons. Indeed, these rotors are very simple to built, they are unidirectional respect to the incoming flow, they works well at low flow speed and they produce high torque which allow them to start at very low cut in velocities. By means of a CFD 2D numerical model, the present paper demonstrates the great potentialities offered by the use a Savonius wind turbine in Oscillating Water Column devices. The CFD model was developed and validated against experimental data, obtained in the subsonic wind tunnel owned by the University of Catania. The ducted rotor was simulated at different flow and rotational speed, in steady unidirectional condition which is of utmost importance as a first step in the more complex oscillating flow study. |
Databáze: | OpenAIRE |
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