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FSAE赛车新型曲面前翼尾翼气动优化设计
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Optimal aerodynamic design for formula SAE car using curved wings
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    摘要:

    通过优化设计大学生方程式赛车的空气动力学套件，可有效提高赛车的性能。在满足大学生方程式汽车大赛（FSAE）设计规则的前提下，率先采用曲面翼设计理念，优化设计了重庆大学方程式赛车的前翼和尾翼。结合翼形分析软件Profili与Xfoil，进行详细的翼型选型与攻角确定。基于计算流体力学的三维流场数值模拟，优化了赛车的前翼和尾翼。对比多种造型策略，确定了新型减阻曲面翼造型，选用"直主翘襟"尾翼和箭状曲面前翼的空气动力学套件。优化后的赛车整车负升力系数提升至1.68，负升阻比提升至1.91。

    Abstract:

    Optimizing the design of the aerodynamic packages can effectively improve the performance of the formula SAE (FSAE) racing car. Following the rules of Formula Student China, we take the lead in using the curved wings to optimize the front wing and rear wing for Chongqing University formula SAE racing car. Profili and Xfoil are used to choose the wing sections and optimize the attack angles. An in-depth study is undertaken to analyze the flow field around the formula car in the rectangular parallelepiped wind tunnel simulation via numerical simulations (CFD, computational fluid dynamics). The results indicate that downforce is increased with a sword cured front wing and a rear wing. The rear wing contains a main straight wing and upwarp flap. The downforce coefficient is improved to 1.68 and downforce-drag ratio is improved to 1.91.

    参考文献
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引用本文

周涛,曾忠. FSAE赛车新型曲面前翼尾翼气动优化设计[J].重庆大学学报,2017,40(10):40-52.

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  • 收稿日期:2017-05-05
  • 在线发布日期: 2017-11-02
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