为了提高轴快流CO2激光器换热器设计的灵活性、缩短研发周期、降低成本, 采用计算流体动力学方法对换热器内部流场和热交换过程进行了分析。根据分析结果设计出流阻为154.5Pa、换热量为8888.5W的换热器。由4kW轴快流CO2激光器的运行试验证明, 采用计算流体动力学法设计的换热器满足激光器的运行需求。结果表明, 计算流体动力学法是一种精确、高效的轴快流CO2激光器换热器的设计方法。

In order to get understand the process of the heat exchanging and flow field and design heat exchangers with more flexibility, computational fluid dynamics was used to design the heat exchanger of 4kW fast axial flow CO2 laser. The flow resistance of the heat exchanger is 154.5Pa and its heat transfer is 8888.5W. The heat exchanger can ensure the long-term stability of fast axial flow CO2 laser. The research proves that computational fluid dynamics theory can make the design process of heat exchanger more efficient and accurate.