Preliminary experimental study on solid-fuel rocket scramjet combustor
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- 作者：Zhong Lv ; Zhi-xun Xia ; Bing Liu ; Li-ya Huang
- 关键词：Key wordsSolid fuel ; Rocket scramjet ; Dual combustor ; Direct ; connect experiment
- 刊名：Journal of Zhejiang University-SCIENCE A
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：18
- 期：2
- 页码：106-112
- 全文大小：
- 刊物类别：Engineering
- 刊物主题：Mechanical Engineering; Civil Engineering; Classical and Continuum Physics; Industrial Chemistry/Chemical Engineering;
- 出版者：Zhejiang University Press
- ISSN：1862-1775
- 卷排序：18
文摘
Liquid or gaseous fuel scramjet technology has made great progress, and there has been some research attention to solid-fuel scramjet. A new scramjet configuration using solid fuel as propellant, namely solid-fuel rocket scramjet, is tested experimentally. It consists of two combustors. One is a rocket combustor used as gas generator, and the other is a supersonic combustor used for secondary combustion. The experiment simulates a flight Mach number of 4 at high altitude (stagnation temperature and pressure are 1170 K and 1.16 MPa, respectively), and metalized solid fuel is used as propellant. The results reveal that fuel-rich gas from the gas generator can burn with air in the supersonic combustor. Preliminary evaluation results show that the combustion efficiency of the propellant is about 90%, and the total pressure recovery coefficient in the supersonic combustor is about 0.6. These results indicate that the configuration of solid-fuel rocket scramjet is feasible.