用计算流体力学(CFD)方法对传导冷却端面抽运板条(CCEPS)激光器的多种水冷设计方案分别进行了流固耦合传热数值模拟,比较了流固耦合传热模拟和单纯的导热模拟结果的差别,对各种水冷设计方案进行综合比较,研究了冷却通道的尺寸、数量以及冷却水流量等因素对激光板条温度分布以及对热沉的流动阻力特性的影响。一般情况下,减小通道的特征尺寸,增加通道数目和冷却水的流量可以降低固液耦合界面的传热热阻,因此,微通道冷却方式比常规的空腔冷却和小通道冷却显著提高了总传热系数,降低了总热阻,可将发热部分的温度明显降低,但是微通道冷却方式必然造成较大的流动压力损失。 The CFD method is used to simulate the heat transfer of various kinds of water cooling schemes of CCEPS lasers. The fluid-solid coupling heat transfer simulation and the simple thermal conduction simulation The differences between the two designs are compared. The influences of cooling channel size, quantity and cooling water flow on the laser slab temperature distribution and the flow resistance characteristics of the heat sink are studied. In general, reducing the size of the channel, increasing the number of channels and the flow of cooling water can reduce the heat transfer resistance at the solid-liquid coupling interface. Therefore, the cooling mode of the microchannel is significantly improved compared with the conventional cavity cooling and the small-channel cooling The total heat transfer coefficient, reducing the total thermal resistance, the heating part of the temperature can be significantly reduced, but the microchannel cooling is bound to cause greater flow pressure loss.