表面波纹对HSX填料传质影响的计算流体力学(CFD)模拟

应用计算流体力学（CFD）方法和流体体积（VOF）模型对气液两相流动行为和传质过程进行了研究。分别对富氧水在光滑板与波纹板上的解析进行了实验和CFD模拟研究，模拟结果显示波纹结构对于增加传质推动力有明显的作用；在液相雷诺数Re<90时，波纹板的传质效率比光滑板高出20%左右。对由CFD模拟得到的流场信息进行分析，结果表明波纹的存在增加了流体的湍动，造成波纹板传质效率增加；随着液相雷诺数的增大，波纹对气液相界面的影响逐渐减小，波纹板与光滑板传质效率的差值逐渐减小。模拟结果与实验结果吻合度较高。

CFD study of the effects of surface texture on mass transfer in HSX structure packings

The computational fluid dynamics(CFD) method and volume of fluid (VOF) model have been employed to investigate vapor-liquid two-phase flow behavior and the resulting mass transfer process. The analysis of oxygen-enriched water on a smooth surface and a rough surface was carried out by experiment and CFD simulation. The mass transfer efficiency of the rough surface is about 20% higher than that of the smooth surface when the liquid Reynolds number is small, and the difference between them decreases with the increase of the Reynolds number of the liquid. The experimental results are in good agreement with the simulation results.