高功率轴快流CO_2激光器气体循环系统的研究进展

Progress of Research of Gas Circulation System in the High Power Fast Axial Flow CO_2 Laser

为将高功率轴快流CO_2激光器放电过程中产生的大量热量带走,保持放电区气体温度接近常温,更利于激光器稳定运行,对于气体循环系统的优化设计至关重要。先就其气体循环系统组成及重要性进行阐述,后对其各个组成方面的研究发展进行综述,并对已有的模型建立以及数值模拟的发展进行综述,并运用计算流体动力学方法对气体流场进行数值模拟,通过对模拟结果分析得到对气体循环系统进行优化设计的方向,最后对课题组已经进行的一些工作进行阐述。

In order to take away the heat generated in the process of discharge of the high-power fast axial flow CO2 laser, keep the gas discharge area close to room temperature and remain the laser more stable operation, the optimal design for the gas circulation system is essential. The first part is the component of its gas circulation system and the importance of the elaboration, Then the composition of the various research and developments were presented, and the developments of the existing model and numerical simulation are discussed and according to use the computational fluid dynamics method to simulate the gas flow field, the direction of optimize the laser were obtain, through analysis of the simulation results of gas recycling system. The last was some research has carried out by our group.