摘要
采用在进气道出口连续抽气的方法,在地面静止状态(俯仰角α=0°,偏航角β=0°)下试验研究全尺寸埋入式进气道的气动特性。首先介绍了试验方法,给出了出口总压分布图谱,然后对进气道流量和畸变特性进行了分析。结果表明:试验设计合理,准确校准了进气道出口流量;地面静止状态下进气道性能良好,总压恢复系数随流量的增大而减小,周向畸变指数、紊流度和综合畸变指数则随出口马赫数的增加而增加。
An experimental investigation was carried out on a full-scale submerged inlet underground con-ditions （α=0°, β=0°） by consecutive suction from the exit of the inlet. The experimental means and the exit total pressure distribution were presented. Besides, the flow rate characteristics as well as distortion charac-teristics were analyzed. Results indicated that the test system was reasonable and the mass flow in the exit was calibrated accurately. And the inlet was working smoothly under ground running conditions. With the ascent of the mass flow, both the total-pressure distortion and turbulence increased, the total pressure recov-er coefficient decreased.
出处
《燃气涡轮试验与研究》
北大核心
2014年第3期12-15,共4页
Gas Turbine Experiment and Research
关键词
全尺寸埋入式进气道
抽吸作用
流场畸变
流量校准
总压恢复
气动特性
full-scale submerged intake
suction
flowfield distortion
flow rate calibration
total pressure restoration
aerodynamic characteristic
