Numerical Simulation for Laser Propulsion of Air Breathing Mode Considering Moving Boundaries and Multi-Pulses

2006 ◽  
Author(s):  
Ping Gong
Keyword(s):  
Numerical Simulation ◽  
Moving Boundaries ◽  
Air Breathing ◽  
Breathing Mode ◽  
Laser Propulsion

Numerical simulation of air-breathing mode laser propulsion by nanosecond laser pulse

2009 ◽  
Author(s):  
Lei Shi ◽  
Shanghong Zhao ◽  
Xingchun Chu ◽  
Kanmin Yu ◽  
Lihua Ma ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Laser Pulse ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Air Breathing ◽  
Breathing Mode ◽  
Mode Laser ◽  
Laser Propulsion

Air-breathing mode laser propulsion with a long-pulse TE CO2laser

2010 ◽  
Vol 8 (8) ◽  
pp. 771-772
Author(s):  
陈静 Jing Chen ◽  
谭荣清 Rongqing Tan ◽  
吴谨 Jin Wu ◽  
卢远添 Yuantian Lu ◽  
徐程 Cheng Xu ◽  
...  
Keyword(s):  
Air Breathing ◽  
Breathing Mode ◽  
Mode Laser ◽  
Laser Propulsion ◽  
Long Pulse

Numerical Analysis of Air-Breathing Mode Laser Propulsion

2008 ◽  
Vol 35 (1) ◽  
pp. 49-54
Author(s):  
石磊 Shi Lei ◽  
赵尚弘 Zhao Shanghonh ◽  
周万银 Zhou Wanyin ◽  
李勇军 Li Yongjun ◽  
胥杰 Xu Jie ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Air Breathing ◽  
Breathing Mode ◽  
Mode Laser ◽  
Laser Propulsion

Numerical simulation of air-breathing nanosecond laser propulsion considering subsonic inflow and multi-pulse

Optik ◽  
2014 ◽  
Vol 125 (14) ◽  
pp. 3444-3448 ◽  
Author(s):  
Hao Chen ◽  
Lei Shi ◽  
Lihua Ma ◽  
Yongan Chen
Keyword(s):  
Numerical Simulation ◽  
Nanosecond Laser ◽  
Air Breathing ◽  
Laser Propulsion

Numerical simulation of gas-solid two-phase reaction flow with multiple moving boundaries

2015 ◽  
Vol 25 (2) ◽  
pp. 375-390 ◽  
Author(s):  
Qiao Luo ◽  
Xiaobing Zhang
Keyword(s):  
Numerical Simulation ◽  
Physical Phenomenon ◽  
Great Influence ◽  
Moving Boundaries ◽  
Charge Weight ◽  
Phase Reaction ◽  
Two Phase ◽  
Content Type ◽  
One Dimensional ◽  
Chamber Volume

Purpose – In engineering applications, gas-solid two-phase reaction flow with multi-moving boundaries is a common phenomenon. The launch process of multiple projectiles is a typical example. The flow of adjacent powder chambers is coupled by projectile’s motion. The purpose of this paper is to study this flow by numerical simulation. Design/methodology/approach – A one-dimensional two-phase reaction flow model and MacCormack difference scheme are implemented in a computational code, and the code is used to simulate the launch process of a system of multiple projectiles. For different launching rates and loading conditions, the simulated results of the launch process of three projectiles are obtained and discussed. Findings – At low launching rates, projectiles fired earlier in the series have little effect on the launch processes of projectiles fired later. However, at higher launching rates, the projectiles fired first have a great influence on the launch processes of projectiles fired later. As the launching rate increases, the maximum breech pressure for the later projectiles increases. Although the muzzle velocities increase initially, they reach a maximum at some launching rate, and then decrease rapidly. The muzzle velocities and maximum breech pressures of the three projectiles have an approximate linear relationship with the charge weight, propellant web size and chamber volume. Originality/value – This paper presents a prediction tool to understand the physical phenomenon of the gas-solid two-phase reaction flow with multi-moving boundaries, and can be used as a research tool for future interior ballistics studies of launch system of multiple projectiles.

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