Unsteady Double Wake Model for the Simulation of Stalled Airfoils

• 作者: Antoine Cayron Jens N?rk?r S?rensen Néstor Ramos-García
• 来源期刊: 电力能源(英文)
• 学科: 数学
• 关键词: WIND Energy AIRFOIL SEPARATED Flow STALL Panel Method
• 年，卷（期）: 2015,（7）
• 页码范围: 20-25
• 页数: 6页
• 分类号: O1

摘要

In the present work, the recent developed Unsteady Double Wake Model, USDWM, is used to simulate separated flows past a wind turbine airfoil at high angles of attack. The solver is basically an unsteady two-dimensional panel method which uses the unsteady double wake technique to model flow separation and its dynamics. In this paper, the calculated integral forces have been successfully validated against wind tunnel measurements for the FFA-W3-211 airfoil. Furthermore, the computed highly unsteady flow field is analyzed in detail for a set of angles of attack ranging from light to deep stall conditions.