Chinese Optics Letters, 2011, 9 (1): 011401, Published Online: Jan. 7, 2011
Computational fluid dynamic modeling of gas flow characteristics of the high-power CW CO2 laser
高功率轴快流CO2激光器 放电管结构 气体流动特性 计算流体动力学方法 优化设计 000.4430 Numerical approximation and analysis 140.3425 Laser stabilization 140.3470 Lasers, carbon dioxide
Abstract
To increase the photoelectronic conversion efficiency of the single discharge tube and to meet the requirements of the laser cutting system, optimization of the discharge tube structure and gas flow field is necessary. We present a computational fluid dynamic model to predict the gas flow characteristics of high-power fast-axial flow CO2 laser. A set of differential equations is used to describe the operation of the laser. Gas flow characteristics, are calculated. The effects of gas velocity and turbulence intensity on discharge stability are studied. Computational results are compared with experimental values, and a good agreement is observed. The method presented and the results obtained can make the design process more efficient.
Hongyan Huang, Youqing Wang. Computational fluid dynamic modeling of gas flow characteristics of the high-power CW CO2 laser[J]. Chinese Optics Letters, 2011, 9(1): 011401.