摘要
为了验证PIV技术在新型扩压器性能试验中的应用前景,开展了基于PIV技术的燃烧室3通道扩压器试验。对不同前置扩压器与不同头部帽罩的流场特征进行分析,得到了关键参数对扩压器内流场分布和压力损失特性的影响。试验结果表明:使用PIV技术能较好地得到扩压器的内流场特征,并反映出3通道扩压器具有较好的流场稳定性,在L_m/L_e=0.7,L_i/L_e=L_o/L_e=0.6,L_c/L_e=1.82时扩压器性能最佳。该技术为先进扩压器的结构优化提供试验依据。
In order to verify the application prospect of PIV technology on new type diffuser performance test, three-channel combustor diffuser test based on PIV technology was studied. Through analyzing the flow field characteristics of different front diffuser and different head caps, influence of key parameters on the distribution of flow field and pressure loss characteristics of diffuser was obtained.The results show that the internal flow field characteristics of diffuser can be obtained preferably by using PIV technology, and can reflect the three-channel diffuser has better flow field stability. When Lm/Le=0.7,Li/Le= Lo/Le=0.6,Lc/Le=1.82, the performance of diffuser is optimum. This technology provides experimental basis for the structure optimization of advanced diffuser.
作者
赵鹏
张玉光
张宝华
Zhao Peng;Zhang Yu-Guang;Zhang Bao-Hua(AECC Shenyang Engine Research Institute,Shenyang 110015,China)
出处
《航空发动机》
北大核心
2018年第3期76-80,共5页
Aeroengine
基金
航空动力基础研究项目资助
