| Zhao Peng,Zhang Yu-Guang,Zhang Bao-Hua.The Application of PIV Technology in three Channels Diffuser Experiment[J].航空发动机,2018,44(3):76-80 |
| The Application of PIV Technology in three Channels Diffuser Experiment |
| DOI： |
| Key Words:combustor three channels diffuser cold-flow field PIV |
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| Abstract: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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