Effect of aerodynamic valve on backflow in pulsed detonation tube
Effect of aerodynamic valve on backflow in pulsed detonation tube
复制标题
气动阀对脉冲爆震管回流的影响
DOI：
10.1016/j.ast.2011.12.003
复制
发表时间：
2013-03
影响因子：
5.6
通讯作者：
Zheng, Long-xi
中科院分区：
文献类型：
--
作者：
Qiu, Hua;Xiong, Cha;Yan, Chuan-jun;Zheng, Long-xi
为了研究燃料自适应控制脉冲爆震发动机气动阀的工作特性，设计了7种气动阀，并在方形脉冲爆震管中进行了试验。采用阴影法、自发光法和压力测量法研究了气动阀对无阀脉冲爆震管后向压力的影响。实验结果表明，残余油滴随回流向上游移动，火焰随回流向上游移动，火焰可以通过气门传播。阀上游的热释放削弱了阀阻尼背压的能力。将防窜钢板引入穿孔气动阀中，验证了理论推导。研究了喉道式气动阀的空心区和文丘里管对气动阀性能的影响。最后，利用正、反向总压恢复系数分析了各气动阀的性能。
To research the operating characteristics of aerodynamic valves, which are applied for pulse detonation engine with adaptive control for fuel, seven aero-valves were designed and tested in a square pulse detonation tube. Shadowgraph images, self-luminous photos and pressure measurement were used to investigate the abilities of the aerodynamic valves to decrease the backward pressure for valveless pulsed detonation tube. The experimental results show that residual fuel droplets moved upstream with backflow followed by flame, and flame could propagate across the valves. The heat release at upstream of the valve weakened the ability of the valve to damp the back pressure. Run-free sheet steel was introduced into the perforated aerodynamic valve and the inference is verified. Influences of hollow region and venturi on the throat-type aerodynamic valves were also investigated. At last, performance of each aerodynamic valve was analyzed by the total-pressure recovery coefficients of positive and reverse direction.
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DOI：
10.2514/6.2004-3402
发表时间：
2004-07
期刊：
--
影响因子：
--
作者：
S. Anderson;J. Tonouchi;G. Lidstone;K. Lupkes;F. Alfonso
通讯作者：
S. Anderson;J. Tonouchi;G. Lidstone;K. Lupkes;F. Alfonso
影响因子：
1.9
作者：
F. Ma;Jeong-Yeol Choi;V. Yang
通讯作者：
F. Ma;Jeong-Yeol Choi;V. Yang
影响因子：
1.9
作者：
E. Wintenberger;J. Austin;M. Cooper;S. Jackson;J. Shepherd
通讯作者：
E. Wintenberger;J. Austin;M. Cooper;S. Jackson;J. Shepherd
影响因子：
29.5
作者：
G. Roy;S. Frolov;A. Borisov;D. Netzer
通讯作者：
G. Roy;S. Frolov;A. Borisov;D. Netzer
DOI：
10.2514/6.2004-3749
发表时间：
2004-07
期刊：
--
影响因子：
--
作者：
A. Prigent;D. Piton;L. Serre;C. Monjaret
通讯作者：
A. Prigent;D. Piton;L. Serre;C. Monjaret