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在气、液两相为连续相固相为颗粒流(granular)的基础上进行模拟,建立了描述三相浆态鼓泡床中湍流流动的模型,在模型中考虑了气相在穿过液相中所形成的气泡直径以及固体颗粒大小对系统的影响,同时对任意两相之间的连续性方程和动量方程进行耦合。以三相浆态鼓泡床固体浓度分布为例进行数值模拟,模拟值与实验值吻合较好,表明模型可靠,模拟方法正确,为研究三相浆态床流态特征提供了一种便捷的方法,也为三相浆态床反应器的设计、开发、放大开辟了一条新的道路。
The gas-liquid two-phase continuous phase solid particles as granular (granular) based on the simulation to establish a three-phase slurry bubbling bed turbulent flow model in the model to consider the gas phase through the liquid phase In the formation of the bubble diameter and size of the solid particles on the system, while the continuity of any two-phase equations and momentum equations are coupled. Taking the three-phase slurry bubbling bed solid concentration distribution as an example, the numerical simulation is carried out. The simulated values are in good agreement with the experimental values, which shows that the model is reliable and the simulation method is correct. It provides a convenient Method, but also for the three-phase slurry bed reactor design, development, amplification has opened up a new road.