高速空气舵横-逆向双射流耦合流动控制及降热特性研究---热管理专刊

  • 骆俊衡 ,
  • 郭庆阳 ,
  • 王林 ,
  • 刘冰 ,
  • 李世斌
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  • 1. 国防科技大学
    2. 国防科技大学航天与材料工程学院

收稿日期: 2026-01-09

  修回日期: 2026-03-20

  网络出版日期: 2026-03-23

基金资助

国家自然科学基金;国防科技大学自主创新科研基金

Investigation on coupled flow control and heat reduction characteristics of transverse-opposing jets for high-speed air rudder

  • LUO Jun-Heng ,
  • GUO Qing-Yang ,
  • WANG Lin ,
  • LIU Bing ,
  • LI Shi-Bin
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Received date: 2026-01-09

  Revised date: 2026-03-20

  Online published: 2026-03-23

摘要

高超声速流动中激波/边界层干扰(SWBLI)引发的多尺度流动耦合效应显著加剧了飞行器热载荷管理难度。本文针对空气舵提出了一种横-逆双射流耦合主动控制方案,并揭示了其在复杂来流工况下对流场SWBLI及气动热环境的影响特征。数值方法已与公开文献中的实验数据进行了验证,并进行了网格无关相关性分析。研究表明,横-逆向双射流方案通过空间耦合布局可实现优于单射流的全局降热。在舵偏11°工况下,当横向射流布置于较远上游(L/K=3)且逆向射流位于高位(H/K=0.50)时,可构建大尺度分离区以隔绝高温主流,使前缘与平板热流峰值分别控制在3200kW·m-2与300kW·m-2以下。而在11°攻角下,所有双射流布局均能显著降低缝隙热流密度至300kW·m-2以下,但前缘热流对射流位置敏感,需避免逆向射流超出横向射流低压尾迹区,以防诱发剧烈再附导致热流剧增。

本文引用格式

骆俊衡 , 郭庆阳 , 王林 , 刘冰 , 李世斌 . 高速空气舵横-逆向双射流耦合流动控制及降热特性研究---热管理专刊[J]. 航空学报, 0 : 1 -0 . DOI: 10.7527/S1000-6893.2026.33348

Abstract

The multi-scale flow coupling effects induced by Shock Wave/Boundary Layer Interaction (SWBLI) in hypersonic flows significantly exacerbate the challenges of thermal load management for flight vehicles. This paper proposes a transverse-opposing dual-jet active control scheme for air rudder and reveals its impact characteristics on SWBLI and aerothermal environments under complex inflow conditions. The numerical methods employed are validated against experimental data from open literature, and a grid independence analysis is conducted. Results indicate that the transverse-opposing dual-jet scheme achieves global heat reduction superior to single-jet configurations through spatially coupled configurations. Under the condition of an 11° rudder deflection, positioning the transverse jet further upstream (L/K=3) and the opposing jet at a higher elevation (H/K=0.50) constructs a large-scale separation zone that isolates the high-temperature mainstream. Consequently, the peak heat fluxes on the leading edge and the plate are controlled below 3200 kW·m-2 and 300 kW·m-2, respectively. At an angle of attack of 11°, all dual-jet configurations significantly reduce the gap heat flux to below 300 kW·m-2. However, the leading-edge heat flux is sensitive to jet positioning; it is crucial to ensure the opposing jet remains within the low-pressure wake of the transverse jet to prevent severe flow reattachment and a subsequent surge in heat flux.

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