Spectral analysis and self-adjusting mechanism for oscillation phenomenon in hydrogen-oxygen continuously rotating detonation engine
Spectral analysis and self-adjusting mechanism for oscillation phenomenon in hydrogen-oxygen continuously rotating detonation engine
复制标题
氢氧连续旋转爆震发动机振荡现象谱分析及自调节机制
DOI：
10.1016/j.cja.2015.03.006
复制
发表时间：
2015-06
影响因子：
5.7
通讯作者：
Wang Jianping
中科院分区：
文献类型：
--
作者：
Liu Yusi;Wang Yuhui;Li Yongsheng;Li Yang;Wang Jianping
连续旋转爆轰发动机是一种新概念的航空航天发动机。在环形燃烧室中可以观察到准稳定的连续旋转爆轰（CRD），但其维持、稳定和调节机理尚不清楚。为了更深入地了解CRDE，已经进行了实验研究来研究氢-氧CRDE。在每个镜头，这表明，稳定的CRD波产生的燃烧室中，当供给压力高于0.5 MPa的燃料和氧化剂，分别。只要保持新鲜气体的供给，每一枪都可以继续运行。压力历程的特写显示了压力峰值的重复性，并指示了氢氧CRD中的爆轰速度，这证明了在环形室中形成稳定的CRD的成功。压力历史的频谱与特写分析相匹配，并证实了CRD。实验还显示了多波现象，并证实了在这种情况下，单个爆轰波在环形空间中旋转的事实。此外，还发现了压力峰值的振荡现象，并提出了一种自调节机制来解释这一现象。
The continuously rotating detonation engine (CRDE) is a new concept of engines for aircraft and spacecraft. Quasi-stable continuously rotating detonation (CRD) can be observed in an annular combustion chamber, but the sustaining, stabilizing and adjusting mechanisms are not yet clear. To learn more deeply into the CRDE, experimental studies have been carried out to investigate hydrogen-oxygen CRDE. Pressure histories are obtained during each shot, which show that stable CRD waves are generated in the combustor, when feeding pressures are higher than 0.5 MPa for fuel and oxidizer, respectively. Each shot can keep running as long as fresh gas feeding maintains. Close-up of the pressure history shows the repeatability of pressure peaks and indicates the detonation velocity in hydrogen–oxygen CRD, which proves the success of forming a stable CRD in the annular chamber. Spectrum of the pressure history matches the close-up analysis and confirms the CRD. It also shows multi-wave phenomenon and affirms the fact that in this case a single detonation wave is rotating in the annulus. Moreover, oscillation phenomenon is found in pressure peaks and a self-adjusting mechanism is proposed to explain the phenomenon.
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影响因子：
2.2
作者：
J. Kindracki;Piotr Wola;ski;Z. Gut
通讯作者：
J. Kindracki;Piotr Wola;ski;Z. Gut
影响因子：
1.9
作者：
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通讯作者：
Dan Wu;R. Zhou;Meng Liu-;Jian-ping Wang
影响因子：
1.4
作者：
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通讯作者：
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影响因子：
1.9
作者：
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通讯作者：
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影响因子：
4.4
作者：
R. Zhou;Jian-ping Wang
通讯作者：
R. Zhou;Jian-ping Wang