全尺寸埋入式进气道地面特性试验  

Experimental Investigation of a Full-Scale Submerged Inlet in Ground Running

作　　者：车杰先[1] 叶巍[1] 孙海涛[1] 康涌[1] 高杰[1] 

机构地区：[1]中国燃气涡轮研究院,四川成都610500

出　　处：《燃气涡轮试验与研究》2014年第3期12-15,共4页Gas Turbine Experiment and Research

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.

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 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程] V211.73