Characterization of Successive Laser Induced Plasma Ignition in an Ethylene Fuelled Model Scramjet Engine

2017 ◽  
Author(s):  
Leichao Yang ◽  
Bin An ◽  
Xi P. Li ◽  
Yang Yu ◽  
Xiaohui Li ◽  
...  
Keyword(s):  
Laser Induced Plasma ◽  
Plasma Ignition ◽  
Scramjet Engine

Characterization of ignition transient processes in kerosene-fueled model scramjet engine by dual-pulse laser-induced plasma

2018 ◽  
Vol 144 ◽  
pp. 23-29 ◽  
Author(s):  
Xipeng Li ◽  
Weidong Liu ◽  
Yu Pan ◽  
Leichao Yang ◽  
Bin An ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Transient Processes ◽  
Laser Induced Plasma ◽  
Scramjet Engine

Laser-induced plasma ignition studies in a model scramjet engine

2013 ◽  
Vol 160 (1) ◽  
pp. 145-148 ◽  
Author(s):  
Stefan Brieschenk ◽  
Sean O’Byrne ◽  
Harald Kleine
Keyword(s):  
Laser Induced Plasma ◽  
Plasma Ignition ◽  
Scramjet Engine

Perspective of laser-induced plasma ignition of hydrocarbon fuel in Scramjet engine

2016 ◽  
Author(s):  
Leichao Yang ◽  
Xiaohui Li ◽  
Jianhan Liang ◽  
Xin Yu ◽  
Xipeng Li
Keyword(s):  
Hydrocarbon Fuel ◽  
Laser Induced Plasma ◽  
Plasma Ignition ◽  
Scramjet Engine

Characterization of the KrF laser‐induced plasma plume created above a BiSrCaCuO target

1990 ◽  
Vol 56 (15) ◽  
pp. 1472-1474 ◽  
Author(s):  
C. Girault ◽  
D. Damiani ◽  
C. Champeaux ◽  
P. Marchet ◽  
J. P. Mercurio ◽  
...  
Keyword(s):  
Plasma Plume ◽  
Laser Induced Plasma ◽  
Krf Laser

Atomic and Molecular Species Post-2 μs Dynamics in Laser-Induced Carbon Plasmas in Air

2020 ◽  
pp. 000370282097160
Author(s):  
Houssyen Yousfi ◽  
Samira Abdelli-Messaci ◽  
Ourida Ouamerali ◽  
Azeddine Dekhira
Keyword(s):  
Laser Fluence ◽  
Nanosecond Laser ◽  
Band Formation ◽  
Plasma Ignition ◽  
A Value ◽  
Recombination Processes ◽  
Density Values ◽  
Specific Temperature ◽  
Carbon Plasma

Laser-induced carbon plasma in air undergoes various physicochemical processes that affect the kinetic chemistry of species of the plasma plume. We report the time- and space-resolved characterization of carbon plasma produced by infrared nanosecond laser into air at atmospheric pressure. Investigating the laser fluence effect highlights dissociation for fluences >40 J cm−2, and recombination processes in the fluence range of 10–40 J cm−2. Emission intensities of C2 and CN molecules undergo an enhancement at specific spatiotemporal locations in the laser-induced plasma. At a value of 27 J/cm2 and 0.8 mm from the plasma ignition, molecular band formation is favored for the specific temperature and density values of 1.7 × 1015 cm−3 and 9502 K. The vibrational temperatures of molecules are determined using nonlinear spectral data fitting program. The shock front between laser-induced carbon plasma and air may lead to a significant shock wave that affects the occurrence of molecular CN and C2 formation. This can be explained by the distinct temperatures exhibited by CN and C2 molecules with laser fluence. The atomic carbon travels farther to react and form C2, where the ionization–recombination process plays a significant role in its formation. Collisions of C with N neutrals and N2 molecules are the plausible origin of CN generation. Moreover, the density of CN in the plasma depends on C2 molecules.

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