Prof. Zhiguo Dou Profile

Prof. Zhiguo Dou

at Academy of Equipment

SPIE Involvement:

Author

Publications (3)

Proceedings Article | 10 May 2019 Paper

Impulse coupling performance of laser ablation GAP in vacuum environment

Dong dong Cao, Zhi guo Dou, Ji fei Ye

Proceedings Volume 11068, 110681S (2019) https://doi.org/10.1117/12.2524625

KEYWORDS: Laser ablation, Infrared radiation, Laser energy, Doping, Reflectivity, Absorption, Pulsed laser operation, Polymers, Particles, Energy efficiency

Read Abstract +

Proceedings Article | 12 December 2018 Paper

Experimental analysis of carbon-doped glycidyl azide polymer with Nd:YAG laser pulse in vacuum

Lele Luo, Zhiguo Dou, Jifei Ye, Dongdong Cao

Proceedings Volume 10844, 108440A (2018) https://doi.org/10.1117/12.2503938

KEYWORDS: Laser ablation, Carbon, Nanoparticles, Polymers, Laser energy, Doping, Absorption, Energy efficiency, Particles, Pulsed laser operation

Read Abstract +

Proceedings Article | 17 September 2013 Paper

The influence of energy deposition parameters on laser plasma drag reduction

Zhiguo Dou, Zhun Liu, Honglin Yao, Xiuqian Li

Proceedings Volume 8904, 89040J (2013) https://doi.org/10.1117/12.2032854

KEYWORDS: Plasma, Laser energy, Energy efficiency, Numerical simulations, Computer simulations, Optical simulations, Laser applications, Aerodynamics, Head, Thermal modeling

Read Abstract +

Laser plasma drag reduction is a new method to reduce the wave drag of hypersonic flight. The research of the laser plasma drag reduction performance is an important work. The purpose of this paper is investigating laser plasma drag reduction by numerical simulation to enhance the understanding of the drag reduction mechanism, get the drag reduction performance in different conditions, and provide references for laser plasma drag reduction experiment in the future. Based on summarizing correlative references systematically, through building the model of energy deposition and comparison the simulated results to the empirical formula and computation results to verify the program correctness, the influence of laser energy parameters to laser plasma drag reduction were simulated numerically for optimize the performance. The follow conclusions were got by numerical simulation: The computation program can well simulate the interacting of LSDW(laser supported detonation wave) to the bow shock in front of the blunt body. Results indicate that the blunt body drag could be decreased by injecting laser energy into the incoming hypersonic flow. The correctness of program was verified by compare result to the experiment and computation results. Blunt body drag will be greatly decreased with injected laser power increased, The bigger laser power is injected, the more drag decreases. There’s an energy saturation value for each laser power level, the injecting laser power effectiveness values are never quite high for all laser power level. There is an optimized energy deposition location in upstream flow, this location is right ahead of the blunt body. When the distance from deposition location to the surface of blunt body is 5 times the blunt radius, blunt body drag decreased the most. This paper investigated the parameters which primary influence the performance of drag reduction. The numerical simulation data and obtained results are meaningful for laser plasma drag reduction experiment investigation. Aerodynamic drag, laser plasma, hypersonic, drag reduction, numerical simulation

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years