Experimental Study on Ignition Process of a Magnesium-Based Water Ramjet Engine

2014 ◽  
Vol 30 (3) ◽  
pp. 857-862 ◽  
Author(s):  
L. Y. Huang ◽  
W. H. Zhang ◽  
Z. X. Xia ◽  
J. X. Hu
Keyword(s):  
Experimental Study ◽  
Ignition Process ◽  
Ramjet Engine ◽  
Water Ramjet

Performance study of a water ramjet engine

2011 ◽  
Vol 54 (4) ◽  
pp. 877-882 ◽  
Author(s):  
LiYa Huang ◽  
ZhiXun Xia ◽  
JianXin Hu ◽  
QianWen Zhu
Keyword(s):  
Performance Study ◽  
Ramjet Engine ◽  
Water Ramjet

scholarly journals Experimental Study on the Ignition Process of Single Coal Particles at Microgravity

2008 ◽  
Vol 22 (1) ◽  
pp. 27-35 ◽  
Author(s):  
Gen-tu Tang ◽  
Hai Zhang ◽  
Ming-ming Zhu ◽  
Hairui Yang ◽  
Guang-xi Yue ◽  
...  
Keyword(s):  
Experimental Study ◽  
Ignition Process ◽  
Coal Particles

Principle of Conforming Water-Fuel Ratio for Metal Matrix Fuel Water-Ramjet Engine

2010 ◽  
Vol 450 ◽  
pp. 474-477
Author(s):  
Ye Gao ◽  
Ping An Liu ◽  
Ge Wang ◽  
Liu Han
Keyword(s):  
Nozzle Exit ◽  
Specific Impulse ◽  
Minimization Method ◽  
Water Steam ◽  
Fuel Ratio ◽  
Ramjet Engine ◽  
Vaporization Temperature ◽  
Performance Ability ◽  
Value Of It ◽  
Water Ramjet

When water-ramjet engine working, its water-fuel ratio is needed to conform. Taking magnesium-based fuel for example, thermodynamic parameter of different formulation fuel under different water-fuel ratio was calculated with the free energy minimization method. It was found that the effective specific impulse of water-ramjet engine increased first and then decreased with the increasing of water-fuel ratio, so there was the maximum value of it, named optimum specific impulse. The corresponding water-fuel ratio was the best one, and then the performance ability of water-ramjet engine was the maximum one. The temperature of nozzle exit gradually decreased with the increasing of water-fuel ratio. When the temperature was lower than local vaporization temperature, water steam coagulated and it would cause the thrust force to decline. Therefore, when the water-ramjet engine is designed, the value of water-fuel ratio can't exceed the best water-fuel ratio by the premise of guarantee of the temperature of nozzle exit as high as possible.

Experimental Study on Expansion Process of High Pressure Twin Combustion-Gas Jets in Liquid

2011 ◽  
Vol 148-149 ◽  
pp. 212-215 ◽  
Author(s):  
Xiao Chun Xue ◽  
Yong Gang Yu ◽  
Qi Zhang
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
High Speed ◽  
Combustion Stability ◽  
Ignition Process ◽  
Liquid Propellant ◽  
Expansion Process ◽  
Combustion Gas ◽  
Gas Jets ◽  
Controlling Mechanism

In order to investigate the multipoint ignition process and the combustion stability controlling mechanism of the bulk-loaded liquid propellant gun, the cylindrical stepped-wall observation chambers and cylindrical observation chambers are designed. The expansion process and interaction of high-speed twin combustion-gas jets in liquid are studied by high speed photographic system. The influence of chamber structure, nozzle diameter, dual-orifice interval, jet pressure on twin gas jets expansion process has been discussed.

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