首页> 外文期刊>The Aeronautical Journal >Active control of swept shock wave/turbulent boundary-layer interactions
【24h】

Active control of swept shock wave/turbulent boundary-layer interactions

机译:主动控制扫掠波/湍流边界层相互作用

获取原文
获取原文并翻译 | 示例
           

摘要

This paper looks at active control of the swept shock wave/turbulent boundary-layer interaction using smart flap actuators. The actuators are manufactured by bonding piezoelectric material to an inert substrate to control the bleed/suction rate through a plenum chamber. The cavity provides communication of signals across the shock, allowing rapid thickening of the boundary-layer approaching the shock, which splits into a series of weaker shocks forming a lambda shock foot, reducing wave drag. Active control allows optimum control of the interaction, as it would be capable of positioning the control region around the original shock position and control the rate of mass transfer. The actuators are modelled using classical composite material mechanics theory, namely analysis of a laminate with a uniform cross section. Furthermore a finite element modelling program (ANSYS 5.7) was used to produce improved results.
机译:本文着眼于使用智能襟翼执行器的主动控制扫掠波/湍流边界层相互作用。通过将压电材料粘合到惰性基板上以控制通过增压室的放气/吸气速率来制造致动器。空腔可在整个电击信号之间传递信号,从而使靠近电击的边界层迅速变厚,从而分成一系列较弱的电击,从而形成λ电击脚,从而减小了波阻。主动控制允许对相互作用进行最佳控制,因为它可以将控制区域定位在原始冲击位置周围,并控制质量传递的速率。使用经典的复合材料力学理论对执行器进行建模,即对具有均匀横截面的层压板进行分析。此外,使用有限元建模程序(ANSYS 5.7)可以产生更好的结果。

著录项

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