Direct Numerical Simulation of flow instabilities over Savonius style wind turbine blades

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• 作者：A. Ducoin^a ; ^{antoine.ducoin@ec-nantes.fr} ; M.S. Shadloo^b ; S. Roy^c
• 关键词：Direct Numerical Simulation ; Savonius style wind turbine ; Centrifugal instability ; Blade performance
• 刊名：Renewable Energy
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：105
• 期：Complete
• 页码：374-385
• 全文大小：4381 K
• 卷排序：105

文摘

Direct Numerical Simulation is performed on a Savonius style wind turbine blade. A high order spectral element method is used. Centrifugal instability occurs at the pressure side of the blade. The break down of Görtler vortices cause the flow to transit to turbulence. The pressure and friction distributions along the blade are altered by the transition phenomena.