CFD Simulation of the Gas-Liquid Flow on the Ripple Tray

Bin Jiang, Zhongtao Li,Luhong Zhang

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China‡

National Engineering Research Centre of Distillation Technology, Tianjin 300072, People’s Republic of China

Abstract:

The ripple tray is a sieve tray without downcomers, in which the liquid contacts with the upward gas counter-currently. The hydrodynamics performance in ripple tray columns was investigated with the computational fluid dynamics (CFD) method. Various superficial gas velocity and liquid loads were simulated for the tray with cylindrical cross sections using the Euler-Euler method. The modeling results were validated by comparing the calculated liquid height on the ripple tray with the experimental values. The developed CFD model is found to be able to predict the two phase flow patterns in ripple tray columns and provide useful information for further design of ripple tray.

Keywords:

Computational Fluid Dynamics (CFD), Counter-Current Flow, Euler-Euler Model, Multiphase Flow, Ripple Tray

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