CAJ | 학술논문

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。
채용재진기도출구련속추기적방법，재지면정지상태(부앙각α=0°，편항각β=0°)하시험연구전척촌매입식진기도적기동특성。수선개소료시험방법，급출료출구총압분포도보，연후대진기도류량화기변특성진행료분석。결과표명：시험설계합리，준학교준료진기도출구류량；지면정지상태하진기도성능량호，총압회복계수수류량적증대이감소，주향기변지수、문류도화종합기변지수칙수출구마혁수적증가이증가。
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.