摘要
本文通过计算流体力学软件FLUENT,基于VOF模型,对化工生产中常见的T型微通道内气液两相流动情况进行了2维模拟。得到了T型微通道内Taylor流的气泡生成过程和压力变化情况。模拟的结果与前人的实验结果吻合较好。通过模拟结果的分析发现,微通道内气泡的生成过程是挤压力、表面张力和剪切力共同作用的结果。泡状流下,微通道内压力的分布呈规则的阶梯状分布,这一结论符合Young-Laplace方程。
In this paper, two phase flow in T-junction microchannel is simulated by CFD software FLUENT. Based on the VOF model, the pressure distribution and the process of bubble generation is obtained. The results of the simulation is in good accordance with the experimental data from former literature. The results show that the shear stress, surface tension and the pressure from liquid play an important role during bubble generation. The pressure distribution along the center line of the main channel is in a stepping manner, which is conform to the Young-Laplace equation.
出处
《化工管理》
2015年第36期115-117,共3页
Chemical Engineering Management
