水蒸气凝结对亚声速发动机进气道流场的影响  

Effects of water vapor condensation on the flow field of subsonic aero-engine inlet

作　　者：黄生龙 张俊杰 贾春强 吴建辉 林龙沅[1] HUANG Shenglong;ZHANG Junjie;JIA Chunqiang;WU Jianhui;LIN Longyuan(School of Environment and Resources,Southwest University of Science and Technology,China;AECC Sichuan Gas Turbine Establishment,Mianyang 621010,China)

机构地区：[1]西南科技大学环境与资源学院 [2]中国航发四川燃气涡轮研究院,四川绵阳621010

出　　处：《燃气涡轮试验与研究》2023年第4期1-7,共7页Gas Turbine Experiment and Research

基　　金：中国航发自主创新专项资金项目(CXPT-2019-007);四川省科技计划资助项目(2023YFS0362)。

摘　　要：为研究凝结对发动机进气道流场性能的影响,对不同工况条件下进气道内水蒸气凝结现象进行了数值模拟,并利用多因素响应模型分析了空气流动条件对凝结的响应强度。结果表明:空气温度5℃以下,可不用考虑凝结对流场性能的影响;温度、相对湿度或马赫数升高,凝结量增加,凝结区扩大;凝结量1%以下对流场性能影响有限,凝结量1%以上时需考虑总压损失与总温上升;温度、相对湿度或马赫数对水蒸气凝结皆有显著影响。In order to study the influence of condensation on the performance of aero-engine intake flow field,numerical simulation of water vapor condensation in the air intake tract under different operating conditions,and the response intensity of condensation to air flow conditions was analyzed by using multi-factor response model.The results show that when the air temperature is below 5℃,the influence of condensation on the flow field performance can be ignored,and relative humidity or Mach number increases,the condensation amount increases and the condensation zone expands.When the condensation amount is less than 1%,the influence on the flow field performance is limited.When it is more than 1%,the total pressure loss and total temperature rise should be considered;the temperature,relative humidity or Mach number have a significant effects on the condensation of water vapor.

关 键 词：航空发动机 水蒸气 凝结 亚声速进气道 多因素响应 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]