摘要
为提升低速风洞试验模型基于电动涵道推力矢量装置的推力特性,建立了电动涵道推力矢量数值仿真模型,对其推力特性开展了数值模拟,并通过地面台架试验和低速风洞试验对数值模拟结果进行了验证。在此基础上对推力矢量装置的进气畸变特性和推力特性进行了优化设计。结果表明:设置辅助进气门不仅能有效改善推力矢量装置低速时的进气总压畸变,还能增加进气流量以此提升装置的推力;喉道面积与电动涵道流通面积相匹配的推力矢量装置能很好地发挥电动涵道的潜在推力特性;减小电动涵道风扇的流通面积来匹配推力矢量装置的流通能力,以此消除叶尖分离提升转子效率可小幅提升推力;通过串联两台电动涵道来增加动力源功率也可有效提升推力。
In order to improve the thrust characteristics of the thrust vectoring device based on the electric ducted propeller of the low-speed wind tunnel test model,a numerical simulation model of the electric ducting thrust vectoring device was established,and its thrust characteristics were numerically calculated and analyzed.The simulation results were verified by ground bench tests and low-speed wind tunnel tests.On this basis,the inlet distortion and thrust characteristics of the device were optimized.The results show that the auxiliary inlet valve can not only effectively improve the total inlet pressure distortion at low speed,but also increase the inlet air flow to enhance the thrust of the thrust vectoring device.The thrust vector device matching the throat area with the flow area of the electric ducted propeller can give full play to the potential thrust characteristics of electric ducted propeller.Reduce the flow area of the rotor to match the flow capacity of the thrust vectoring device,so as to eliminate the tip separation to slightly increase the thrust.Two electric ducted propellers are connected in series to increase power of the device on the air flow,which can also effectively improve the thrust.
作者
谭鹏
吴金华
巫朝君
朱正龙
郭林亮
TAN Peng;WU Jinhua;WU Chaojun;ZHU Zhenglong;GUO Linliang(China Aerodynamics Research and Development Center,Mianyang 621000,China)
出处
《飞行力学》
CSCD
北大核心
2023年第6期68-75,共8页
Flight Dynamics
关键词
风洞试验
电动涵道
推力特性
数值模拟
wind tunnel test
electric ducted propeller
thrust characteristics
numerical simulation
