张耀光1,马庆岩2,陈雷1,杨琳1,史文斌1.涡扇发动机压缩系统部件特性与匹配数值仿真[J].航空发动机,2022,48(5):88-93
涡扇发动机压缩系统部件特性与匹配数值仿真
Numerical Simulation on Component Characteristics and Matching of Compression System for Turbofan Engine
  
DOI:
中文关键词:  压缩系统  部件特性  匹配  发动机环境  数值仿真  航空发动机
英文关键词:compression system  component characteristics  matching  engine environment  numerical simulation  aeroengine
基金项目:航空动力基础研究项目资助
作者单位E-mail
张耀光1,马庆岩2,陈雷1,杨琳1,史文斌1 1.中国航发沈阳发动机研究所沈阳1100152.中国人民解放军31434部队沈阳110015 791598301@qq.com 
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中文摘要:
      为了研究发动机环境中部件特性及部件之间的匹配规律,采用3维数值模拟软件对某压缩系统进行数值仿真计算。计 算比较了设计转速风扇/压气机部件特性单独评定和发动机环境中评定的异同,研究了压缩系统4种可调参数变化对风扇、压气机 匹配工作点的影响。结果表明:2种环境下风扇特性基本相同;对于压气机,单独评定时以风扇出口参数的径向分布作为进口边界 条件获得的压气机特性与整机环境下的基本相同,而给定其他形式进口边界条件时压气机特性存在一定差异:采用均匀进气条件 时,压气机流量、效率和喘振裕度分别增加0.3%、0.4%和4.6%,采用进口节流条件时压气机流量、效率和喘振裕度分别减小3.5%、4.0% 和20.9%,整机环境使用时应对特性进行修正。研究结果对整机环境下风扇/压气机性能表现以及匹配规律研究有重要参考意义。
英文摘要:
      In order to study the component characteristics and component matching in engine environment,three dimensional numeri? cal simulation was conducted on a compression system,and the influence of the variation of four adjustable parameters on matching operat? ing point of fan and compressor was studied. The results show that the fan characteristics are essentially the same in both environments; for the compressor,while using the radial distribution of fan outlet parameters as the inlet boundary conditions,the separate evaluated charac? teristics is basically the same as that under whole engine environment,but the compressor characteristics are different to certain extent when other boundary conditions are specified,the compressor flow,efficiency and surge margin increased by 0.3%,0.4% and 4.6% respec? tively under the uniform inlet boundary condition,the compressor flow,efficiency and surge margin reduced by 3.5%,4.0% and 20.9% re? spectively under inlet throttling boundary condition. These characteristics should be corrected when used in whole engine environment. The findings can be used as a valuable reference for the study of fan/compressor performance and component matching in whole engine environ? ment.
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