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为了实现高功率Yb:YAG激光器的高效冷却,对大口径片状Yb:YAG激光器的水冷结构进行了设计,采用有限元方法对该结构的传热效果进行了数值模拟,得到了该结构的表面对流传热系数、换热面的温度分布等参量。结果表明,该设计可以得到均匀的传热系数分布和温度分布,传热系数达到1.8×10~4W/(m~2·K),介质表面温差在1K以内,换热效果良好。
In order to realize high efficiency cooling of high power Yb: YAG laser, the water cooling structure of large diameter Yb: YAG laser was designed. The heat transfer effect of this structure was numerically simulated by finite element method. The surface of this structure Convection heat transfer coefficient, the temperature distribution of heat transfer surface and other parameters. The results show that the design can obtain uniform heat transfer coefficient distribution and temperature distribution, the heat transfer coefficient reaches 1.8 × 10 ~ 4W / (m ~ 2 · K), the surface temperature difference is less than 1K, and the heat transfer effect is good.