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Swept-Wing Outboard-Horizontal-Stabilizer Aircraft Configuration

机译:后掠式舷外水平稳定器飞机配置

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摘要

The concept of a high-subsonic Mach-number, swept-wing, aircraft configuration with outboard horizontal stabilizers (OHS) was investigated experimentally by means of wind-tunnel tests. Because the wind-tunnel model employed airfoil surfaces with symmetric sections, additional theoretical work was carried out to investigate the influence on OHS flight performance of substituting wings of asymmetric section as often used for so-called supercritical airfoils designed for high-subsonic Mach-number flight. Such airfoils generate significant negative pitching-moment coefficients. The wind-tunnel tests showed that the OHS concept works very well with substantial drag-redaction benefits, relative to conventional configurations, essentially equal to those previously demonstrated for nonswept wing OHS vehicles. It was found, from the theoretical treatment, that the introduction of a negative pitching moment degraded the performance, in terms of lift/drag ratio, of both OHS and corresponding conventional aircraft but the OHS arrangement retained a substantial overall superiority.
机译:通过风洞试验,实验研究了具有亚音速马赫数,掠过机翼,带有舷外水平稳定器(OHS)的飞机构型的概念。由于风洞模型采用具有对称截面的机翼表面,因此进行了额外的理论工作来研究不对称截面的机翼对OHS飞行性能的影响,这种机翼通常用于为高亚音速马赫数设计的所谓超临界机翼飞行。这样的机翼产生明显的负俯仰力矩系数。风洞测试表明,相对于常规配置,OHS概念非常有效,并且具有显着的减阻优势,基本上与先前针对非后掠式OHS车辆展示的等同。从理论上可以发现,引入负俯仰力矩会降低OHS和相应常规飞机的升力/阻力比性能,但OHS布置仍保留了相当大的总体优势。

著录项

  • 来源
    《Journal of Aircraft》 |2004年第1期|p.144-150|共7页
  • 作者单位

    University of Calgary, Calgary, Alberta T2N 1N4, Canada;

  • 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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