Experimental study on propagation mode of H2/Air continuously rotating detonation wave
Experimental study on propagation mode of H2/Air continuously rotating detonation wave
复制标题
H2/Air连续旋转爆轰波传播模式的实验研究
DOI：
10.1016/j.ijhydene.2014.11.119
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发表时间：
2015-01
影响因子：
7.2
通讯作者：
Zhuang Fengchen
中科院分区：
文献类型：
--
作者：
Zhou Jin;Liu Shijie;Lin Zhiyong;Zhuang Fengchen
在一台以缝孔碰撞方式喷射氢气和空气的旋转爆震发动机（RDE）模型上，对氢气/空气连续旋转爆震波（CRDW）的传播模式进行了实验研究。在大气压背压下，通过改变喷射条件（不同的质量流量和当量比）进行了实验，得到了4种典型的爆轰传播模式。详细分析了各模态的注入条件、时域和频域特性。结果表明：对于氧化剂喷喉宽为0.4mm的试验模型，随着质量流量的增加，H2/Air CRDW通常以单向模式传播，其传播模式依次包括单波模式、单/双波混合模式和双波模式。而在喷入吹出的N2后，随着H2流量的减少，爆轰仍可能维持在一种特殊的双波碰撞模式。在具有0.2 mm宽的较窄氧化剂喷射喉道的试验模型中更可能观察到这种碰撞模式。在较低的质量流量下，CRDW倾向于呈现不稳定的双波碰撞模式，碰撞点在较小的方位角内缓慢地来回移动;随着质量流量的增加，碰撞点保持稳定，CRDW以稳定的双波碰撞模式传播。
The propagation mode of H2/Air continuously rotating detonation waves (CRDWs) has been experimentally studied in a rotating detonation engine (RDE) model which injected gaseous H2and Air in slit-orifice collision mode. Experiments were conducted by varying injection conditions (different mass flow rates and equivalence ratio) at atmospheric backpressure, and thereby four typical detonation propagation modes were concluded. Moreover, the injection conditions, as well as the time domain and frequency domain characteristics for each mode were detailedly analyzed. Results show that: for the test model with an oxidizer injection throat of 0.4 mm wide, H2/Air CRDW usually propagated in an one-way mode as the mass flow rate increased, which in sequence included three sorts of mode: single wave mode, single/dual-wave hybrid mode, and dual-wave mode. However, after the blow-off N2was injected and the H2flow began to decrease, the detonation was possible to be maintained in a special dual-wave collision mode. This collision mode was more likely to be observed in the test model with a narrower oxidizer injection throat of 0.2 mm wide. At lower mass flow rate, CRDWs tended to show unstable dual-wave collision mode, and the collision points slowly moved back and forth within a small azimuthal angle; with the mass flow rate increasing, the collision points remained stable and CRDWs propagated in stable dual-wave collision mode.
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影响因子：
8.6
作者：
D. Schwer;K. Kailasanath
通讯作者：
D. Schwer;K. Kailasanath
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：
7.2
作者：
A. Gaathaug;K. Vaagsaether;D. Bjerketvedt
通讯作者：
A. Gaathaug;K. Vaagsaether;D. Bjerketvedt
影响因子：
4.4
作者：
R. Zhou;Jian-ping Wang
通讯作者：
R. Zhou;Jian-ping Wang
DOI：
10.1134/s0010508213040060
发表时间：
2013-08
期刊：
Combustion, Explosion, and Shock Waves
影响因子：
--
作者：
F. A. Bykovskii;S. A. Zhdan;E. F. Vedernikov
通讯作者：
F. A. Bykovskii;S. A. Zhdan;E. F. Vedernikov