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Computational Aerodynamics Analysis of Non-Symmetric Multi-Element Wing in Ground Effect with Humpback Whale Flipper Tubercles

机译:用驼背鲸鳍状分绞线地面效应下非对称多元素翼的计算空气动力学分析

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The humpback whale flipper tubercles have been shown to improve the aerodynamic coefficients of a wing, especially in stall conditions, where the flow is almost fully detached. In this work, these tubercles were implemented on a F1 front-wing geometry, very close to a Tyrrell wing. Numerical simulations were carried out employing the k?ω SST turbulence model and the overall effects of the tubercles on the flow behavior were analyzed. The optimal amplitude and number of tubercles was determined in this study for this front wing where an improvement of 22.6% and 9.4% is achieved, respectively, on the lift and the L/D ratio. On the main element, the stall was delayed by 167.7%. On the flap, the flow is either fully detached, in the large circulation zone, or fully attached. Overall, in stall conditions, tubercles improve the downforce generation but at the cost of increased drag. Furthermore, as the tubercles are case-dependent, an optimal configuration for tubercles implementation also exists for any geometry.
机译:已经证明了驼背鲸鳍状分子结节,以改善机翼的空气动力学系数,特别是在失速条件下,其中流动几乎完全分离。在这项工作中,这些结节在F1前翼几何形状上实施,非常靠近Tyrrell翼。采用KωSST湍流模型进行数值模拟,分析了结节对流动行为的整体效果。在该研究中确定了该研究的最佳幅度和数量,其中在升力和L / D比上分别实现了22.6%和9.4%的提高。在主要元素上,摊位延迟了167.7%。在襟翼上,流动完全分离,在大循环区或完全附着。总体而言,在摊位条件下,结节改善了跌幅一代,但拖累增加的成本。此外,随着结节所依赖的,由于任何几何形状,结节实现的最佳配置也存在。

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