首页> 外文期刊>Journal of propulsion and power >Morphing Supersonic Inlet with Deforming Air Cell
【24h】

Morphing Supersonic Inlet with Deforming Air Cell

机译:变形空气室使超音速入口变形

获取原文
获取原文并翻译 | 示例
           

摘要

A mixed-compression supersonic inlet with a variable throat can solve the contradiction of the starting capability at low Mach numbers and the total pressure recovery performance at high Mach numbers. However, the variation of the throat area is rather difficult for an axisymmetric supersonic inlet A new method based on a deforming air cell to control the throat area of an axisymmetric inlet is brought forward and investigated by both experimental and computational methods. The morphing behavior of the deforming air cell in a supersonic wind tunnel is also obtained. The results indicate that the contraction ratio of the inlet can be effectively controlled by the cooperation of the air cell profile under different charging pressures and the cowl inner surface. As compared with a fixed geometry inlet, the total pressure recovery and the corresponding maximum backpressure of the morphing inlet are increased by 25.7 and 31.8 %, respectively. In addition, the air cell can withstand the impact of strong oscillatory flows when the inlet experiences buzz.
机译:喉管可变的混合压缩超声速入口可以解决低马赫数时的启动能力和高马赫数时的总压力恢复性能之间的矛盾。然而,对于轴对称超音速进气口来说,喉部面积的变化是相当困难的。提出了一种基于变形气室来控制轴对称进气口的喉部面积的新方法,并通过实验和计算方法进行了研究。还获得了超音速风洞中变形气室的变形行为。结果表明,进气孔的收缩率可以通过不同充气压力和前围内表面在空气囊轮廓的配合下得到有效控制。与固定几何形状的入口相比,变形入口的总压力恢复和相应的最大背压分别增加了25.7%和31.8%。此外,当进气口出现嗡嗡声时,气囊可以承受强烈的振荡气流的冲击。

著录项

  • 来源
    《Journal of propulsion and power》 |2015年第2期|583-591|共9页
  • 作者单位

    Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 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