Effects of the combustor width on propagation characteristics of rotating detonation waves

Zhicheng Wang, Ke Wang, Qingan Li, Yiyuan Zhu, Minghao Zhao, Wei Fan

科研成果: 期刊稿件文章同行评审

37 引用 (Scopus)

摘要

To investigate effects of the combustor width on propagation characteristics and initiation processes of rotating detonation waves, this experimental study has been performed in a laboratory-scale rotating detonation combustor. Five combustor widths, including 8 mm, 11 mm, 15 mm, 19 mm, and a hollow case, have been considered, based on a fixed outer diameter and a consistent injector position. Ethylene and oxygen-enriched air have been used as fuel and oxidizer. Three propagating modes have been observed and propagation characteristics of rotating detonations have been discussed. Stable rotating detonations are easy to be obtained in the combustor with a larger width, which is beneficial for generating more homogeneous mixtures. The results indicate that the average propagation velocity will decrease when the combustor width is reduced, and a non-dimensional parameter has been proposed which associates the combustor middle diameter with the propagation velocity. In addition, when different combustor widths are utilized, the initiation times for rotating detonations are all around 2∼4ms.

源语言英语
文章编号106038
期刊Aerospace Science and Technology
105
DOI
出版状态已出版 - 10月 2020

指纹

探究 'Effects of the combustor width on propagation characteristics of rotating detonation waves' 的科研主题。它们共同构成独一无二的指纹。

引用此