进气压力畸变对某三级风扇流场的影响  

Effect of Inlet Pressure Distortion on Flow Field of a Three Stage Fan

作　　者：幸晓龙[1] 顾杨[1] 任铭林[1] 王维[1] 何吉荣[1] 叶巍[1] 

机构地区：[1]中国燃气涡轮研究院,江油621703

出　　处：《燃气涡轮试验与研究》2005年第2期18-22,共5页Gas Turbine Experiment and Research

摘　　要：介绍了在某三级风扇上进行的固定式插板畸变试验,并详细分析了进气压力畸变对进、出口稳态压力和温度的影响。同时,采用频域和幅值域分析方法对脉动压力进行了分析,给出了脉动压力功率谱密度、幅值概率密度和自相关、互相关分析。This paper details the experiment of a total pressure distortion generator with a immovable board on a 3 stage fan,and analyzes the effect of inlet pressure distortion on inlet and outlet steady-state pressure and temperature. Analysis of pulsating pressure has been carried out based on the methods of frequency-domain and amplitude-domain. Power spectrum density,amplitude probability density,self-correlation analysis and cross coherence coefficient are presented.

关 键 词：压力畸变 风扇 三级 进气 流场 脉动压力 幅值域分析 功率谱密度 互相关分析 畸变试验 概率密度 固定式 自相关 

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] TP332[自动化与计算机技术—计算机系统结构]