微小尺度多循环爆震实验研究

Peng Fei Ma, Wei Fan, Jian Nan He, Qi Bin Zhang

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

To investigate the feasibility of the application of detonation combustion in micro-thruster, experiments were carried out on multi-cycle detonations at micro scale. The micro detonation chamber is 500mm in length with a 6mm×6mm rectangular cross-section. Oxygen-enriched air (40% by volume) and ethylene were used as oxidizer and fuel, and the operating frequencies ranged from 1 to 30Hz. High-speed camera was used to capture the propagation process of the reaction waves, whose pressures were measured by piezoelectric transducers. The results showed that, when the operation frequency ranging from 1 to 20Hz, multi-cycle detonation could be successfully obtained, and the detonation waves propagated at approximately 2500m/s before reaching the chamber exit. And the higher the frequency, the longer the DDT distanceis. When operated at 10Hz and 20Hz, both the DDT point and the DDT distance vary in different cycles at the same operation frequency. When the frequency was 25Hz and 30Hz, detonation failed to occur due to the insufficient gas filling and mixing.

投稿的翻译标题Experimental Research on Multi-Cycle Detonations at Micro Scale
源语言繁体中文
页(从-至)2060-2067
页数8
期刊Tuijin Jishu/Journal of Propulsion Technology
39
9
DOI
出版状态已出版 - 1 9月 2018

关键词

  • Deflagration to detonation transition
  • Detonation
  • Micro-scale
  • Multi-cycle

指纹

探究 '微小尺度多循环爆震实验研究' 的科研主题。它们共同构成独一无二的指纹。

引用此