Kinetic modeling of a high power fast-axial-flow CO_2 laser with computational fluid dynamics method  

作　　者：李晴 王又青 

机构地区：[1]National Engineering Research Center for Laser Processing,Institute of Optoelectronics Sciences and Engineering,Huazhong University of Science and Technology,Wuhan 430074

出　　处：《Chinese Optics Letters》2008年第7期513-516,共4页中国光学快报（英文版）

摘　　要：A new computational fluid dynamics （CFD） method for the simulation of fast-axial-flow CO2 laser is developed. The model which is solved by CFD software uses a set of dynamic differential equations to describe the dynamic process in one discharge tube. The velocity, temperature, pressure and turbulence energy distributions in discharge passage are presented. There is a good agreement between the theoretical prediction and the experimental results. This result indicates that the parameters of the laser have significant effect on the flow distribution in the discharge passage. It is helpful to optimize the output of high power CO2 laser by mastering its kinetic characteristics.A new computational fluid dynamics （CFD） method for the simulation of fast-axial-flow CO2 laser is developed. The model which is solved by CFD software uses a set of dynamic differential equations to describe the dynamic process in one discharge tube. The velocity, temperature, pressure and turbulence energy distributions in discharge passage are presented. There is a good agreement between the theoretical prediction and the experimental results. This result indicates that the parameters of the laser have significant effect on the flow distribution in the discharge passage. It is helpful to optimize the output of high power CO2 laser by mastering its kinetic characteristics.

关 键 词：Fluid dynamics Fluid mechanics 

分 类 号：TN24[电子电信—物理电子学]