唐利军1 ,朱明明 1 ,王欢2.涡轴发动机适航吸雨试验器喷水特性研究[J].航空发动机,2023,49(1):158-162
涡轴发动机适航吸雨试验器喷水特性研究
Test Study on Water Spraying Characteristics of Airworthiness Rain Ingestion Tester for A Turboshaft Engine
  
DOI:
中文关键词:  涡轴发动机  适航吸雨  试验器  喷嘴  涡流喷嘴  喷水特性
英文关键词:turboshaft engine  airworthiness rain ingestion  tester  nozzles  vortex nozzle  water spraying characteristics
基金项目:航空动力基础研究项目资助
作者单位E-mail
唐利军1 ,朱明明 1 ,王欢2 1.中国航发湖南动力机械研究所湖南株洲 4120022.中国飞行试验研究院西安 710089 xinjinzean@163.com 
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中文摘要:
      为研制满足《航空发动机适航规定》(CCAR-33R2)的某涡轴发动机适航吸雨试验器,采用激光粒度仪对涡流喷嘴、离心 喷嘴及直射式喷嘴的喷水特性进行了试验。结果表明:激光粒度仪的测量结果具有良好的稳定性;离心喷嘴的雨滴平均直径为 500~1500 μm,直射式喷嘴喷水时没有雨滴产生,均与吸雨合格审定标准的雨滴平均直径2660 μm偏差较大;在满足某涡轴发动机 适航吸雨流量的前提下,涡流喷嘴的雨滴平均直径为2077~3365 μm,与吸雨合格审定标准的雨滴平均直径偏差较小,并且雨滴尺 寸随供水压力的提高和测量截面距离的增大而逐渐减小。研究结果可为旋翼航空器发动机适航吸雨试验器的研制提供基础数据 支撑,也可供其他航空器发动机适航吸雨试验器的研制提供参考。
英文摘要:
      In order to develop an airworthiness rain ingestion tester that meet the requirements of the Airworthiness Regulations for Aeroengine(CCAR-33R2)for a turboshaft engine, water spraying characteristics of vortex nozzle,centrifugal nozzle and plain orifice was studied using laser particle size analyzer. The results show that the measurement results of laser particle size analyzer exhibit good stability; the median or average diameter of rain droplets of the centrifugal nozzle is 500~1500 μm, no raindrops generated when testing the direct jet nozzle, both of the water spraying characteristics show large deviation from the criteria of the airworthiness rain ingestion regulations, which is 2660 μm; while the average diameter of rain droplets of the vortex nozzle is 2077~3365 μm, which deviates little from the criteria of the airworthiness rain ingestion regulations,and the rain droplet size decreases with the increase of the water feed pressure and the dis- tance of the measuring cross-section. The results provide basic data support for the development of the rotorcraft engine rain ingestion tes? ter,and also provide reference for development of airworthiness rain ingestion tester for other types of aeroengine.
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