航空学报 > 2021, Vol. 42 Issue (8): 525795-525795   doi: 10.7527/S1000-6893.2021.25795

舰面飞机尾喷流对进气道温度场影响的仿真分析

王霄1,2, 程健慧2, 沈天荣2, 许保成2, 孟轩2   

  1. 1. 国防科技大学 空天科学学院, 长沙 410073;
    2. 航空工业沈阳飞机设计研究所, 沈阳 110035
  • 收稿日期:2021-04-15 修回日期:2021-05-08 发布日期:2021-05-21
  • 通讯作者: 程健慧 E-mail:chjh8907@163.com
  • 基金资助:
    国家级项目

Numerical simulation research of influence of wake flow field on inlet temperature field of carrier-based aircraft

WANG Xiao1,2, CHENG Jianhui2, SHEN Tianrong2, XU Baocheng2, MENG Xuan2   

  1. 1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;
    2. AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110035, China
  • Received:2021-04-15 Revised:2021-05-08 Published:2021-05-21
  • Supported by:
    National Level Project

摘要: 舰载机在加力起飞时通过舰面安装的偏流板将高温尾喷流引向空中排出,避免了高温尾喷流损伤舰面工作人员和舰载设备,但一部分高温尾喷流与偏流板碰撞后的回流受发动机抽吸作用的影响,容易被进气道吸入,导致发动机推力降低,严重时诱发发动机喘振,危害舰载机的使用安全。为了获得高温尾喷流与偏流板碰撞后的回流场流动机理以及参数影响规律,采用数值仿真分析方法开展了研究。首先,通过公开的试验数据验证了仿真分析方法的准确性;然后,完成了舰面环境下某型舰载机双发尾喷流冲击偏流板后的流动机理和温度场特征分析,获得了高温气体被进气道吸入的动态流动特性和进气道出口的温升率;最后,通过研究发动机转速不对称、来流风速、尾喷口到偏流板距离等参数对进气道出口温度畸变强度的影响规律,获得了尾喷口到偏流板的距离对回流场整体强度与分布起决定作用,以及进气口的位置影响进气道抽吸流场与回流场的耦合特性这一结论。

关键词: 舰载机, 偏流板, 尾喷流, 温度畸变强度, 温升率

Abstract: The carrier-based aircraft is faced with severe working environment,so it is necessary to avoid the damage of personnel and equipment by high-temperature wake flow, but also to reduce the intake port of high-temperature gas to prevent the engine thrust reduction and surge. In this paper, the accuracy of the numerical simulation analysis is verified by the test data at first. Then, the flow mechanism and temperature field characteristics of a certain type of carrier-based aircraft with twin engine jet impinging on the deflector are analyzed; the dynamic flow characteristics of high temperature gas inhaled by the inlet and total temperature rise rate are also obtained. Finally, the risk of high temperature gas inhaled by the inlet is evaluated under asymmetrical engine flows, different wind flows, and different distances from the nozzle tail to the jet blast deflector. It is concluded that the distance from the nozzle tail to the jet blast deflector plays a decisive role in the overall strength and distribution of the backflow field, and that the position of the inlet affects the coupling characteristics of the suction and backflow field.

Key words: carrier-based aircraft, jet blast deflector, wake flow field, total temperature distortion intensity, total temperature rise rate

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