| 赵鹏，张玉光，张宝华.PIV 技术在3 通道扩压器试验中的应用[J].航空发动机,2018,44(3):76-80 |
| PIV 技术在3 通道扩压器试验中的应用 |
| The Application of PIV Technology in three Channels Diffuser Experiment |
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| DOI： |
| 中文关键词: 燃烧室 3 通道扩压器 冷态流场 非接触式瞬态流场 测试技术 航空发动机 |
| 英文关键词:combustor three channels diffuser cold-flow field PIV |
| 基金项目:航空动力基础研究项目资助 |
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| 摘要点击次数: 1049 |
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| 中文摘要: |
| 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Lm /Le=0.7，Li /Le= Lo /Le=0.6，Lc
/Le=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 |
| 英文摘要: |
| 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袁Li /Le= Lo /Le=0.6袁Lc /Le=1.82, the performance of diffuser is
optimum. This technology provides experimental basis for the structure optimization of advanced diffuser. |
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