首页> 外文期刊>The Aeronautical Journal >Experimental investigation on wall pressure distribution in flaps' separating regions
【24h】

Experimental investigation on wall pressure distribution in flaps' separating regions

机译:襟翼分隔区域壁压力分布的实验研究

获取原文
获取原文并翻译 | 示例
           

摘要

The effects on the wall pressure of the plate caused by the introduction of a gap near the ground and the flaps were investigated experimentally. The mean pressure on the plate surface was found to decrease with the size changing of the gap near the ground when the gap size (g) is larger than the flap height (h), but the one in the recir-culation region increase with the size of the gap when the gap size is about 0 ≤ g ≤ 2h. Three kinds of flow structure appear with increasing the gap sizes, and the transit point is at g/h = 0.2, 0.8 respectively. For the zigzag flap (d/h = 0.19, d is the height of the zigzag), the variation of wall pressure with g/h is similar to the flat flap in general. The zigzag affects the mean wall pressure in the region of 0 ≤ x/h ≤ 20 (the recirculation zone) and can decrease the fluctuating pressure in the region of x/h > 20 downstream.
机译:实验研究了由于在地面和皮瓣附近引入间隙而对板壁压力的影响。当缝隙大小(g)大于襟翼高度(h)时,发现平板表面的平均压力随着靠近地面的缝隙大小的变化而减小,而在递归区域中的平均压力则随着缝隙大小的增加而增大。当间隙尺寸为约0≤g≤2h时的间隙尺寸。随着间隙尺寸的增加,出现了三种流动结构,过渡点分别在g / h = 0.2、0.8。对于之字形襟翼(d / h = 0.19,d是之字形的高度),壁压随g / h的变化通常类似于平坦的襟翼。之字形影响在0≤x / h≤20区域(再循环区域)中的平均壁压,并可以减小在x / h> 20下游的区域中的脉动压力。

著录项

  • 来源
    《The Aeronautical Journal》 |2004年第1080期|p.103-107|共5页
  • 作者单位

    Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, Peoples Republic of China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号