喷射结构对超临界 RP-3 航空煤油射流自激振荡特性的影响

Pengyu Shi, Qibin Zhang, Zhisheng Wang, Lishi Ren, Qianqian Yu, Wei Fan

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

Self-pulsation in fuel injection is an important cause of combustion instability,and the "gas-like" nature of supercritical fuel makes its self-pulsation yield a more significant effect on oil-gas mixing and combustion. The self-pulsation of supercritical kerosene jets in the rotating flow field was investigated to find out the causes of the self-pulsation and the ways to suppress it. The supercritical kerosene injection processes under different companion flow conditions,recess ratios,and gas-liquid area ratios were investigated by using a high-speed schlieren technique using the proper orthogonal decomposition. The results showed that the oscillation modes of self-pulsation were represented by axial and radial oscillations,and the accompanying gas affected the self-pulsation region. When the gas-liquid area ratio was 674,the cause of self-pulsation was oil-associated gas interaction,and the self-pulsation decreased with the decrease of the recess ratio; when the gas-liquid area ratio was 416 and 178,the cause of self-pulsation was associated gas-environment interaction, and the self-pulsation increased with the decrease of the recess ratio.

投稿的翻译标题Effect of injection structure on the self-pulsation characteristics of supercritical RP-3 aviation kerosene jet
源语言繁体中文
文章编号20230359
期刊Hangkong Dongli Xuebao/Journal of Aerospace Power
40
3
DOI
出版状态已出版 - 3月 2025

关键词

  • injection
  • proper orthogonal decomposition (POD)
  • schlieren techniques
  • self-pulsation
  • supercritical fuels

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