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Effect of Flap and Slat Riggings on 2-D High-Lift Aerodynamics

机译:襟翼和板条索具对二维高空飞行动力学的影响

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摘要

In this paper an extensive parametric study concerning the effect of flap and slat riggings on the 2-D high-lift flow past a three-element airfoil system is presented. The numerical approach for solving the Reynolds-averaged Navier-Stokes equations uses an implicit finite volume scheme of second order accuracy in space on a patched multizonal grid. The Spalart-Allmaras one-equation turbulence model is employed. Six design parameters have been investigated comprising the deviation, gap, and overhang of the slat and of the flap whose settings are centered about the values in practice for takeoff. Good agreement with experiments is obtained for prestall angles of attack. Computations show that both C_l and C_l/C_d have an optimum with every design parameter. The trends in the high-lift flow observed are in accordance with both experiments and computations reported in the literature. C_l and C_l/C_d are found to be more sensitive to deviations and gaps than to overhangs.
机译:在本文中,进行了广泛的参数研究,涉及襟翼和板条索具对经过三元翼型系统的二维高升流的影响。求解雷诺平均Navier-Stokes方程的数值方法使用了修补的多区域网格上空间中二阶精度的隐式有限体积方案。采用Spalart-Allmaras一方程湍流模型。已经研究了六个设计参数,包括板条和襟翼的偏差,间隙和悬垂,其设置以实际起飞值为中心。对于失速的迎角,与实验具有良好的一致性。计算表明,对于每个设计参数,C_1和C_1 / C_d均具有最佳值。观测到的高升流的趋势与文献报道的实验和计算都一致。发现C_1和C_1 / C_d对偏差和间隙比对悬垂更敏感。

著录项

  • 来源
    《Journal of Aircraft》 |2006年第5期|p.1259-1271|共13页
  • 作者单位

    Rheinisch-Westfaelische Technische Hochschule Aachen, 52056 Aachen, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空;
  • 关键词

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