Computational fluid dynamic modeling of gas flow characteristics of the high-power CW CO2 laser

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2011,（1）
• 页码范围: 60-63
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201109.011401

摘要

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.