Axial Dispersion in Gas-Bubble Columns

Abstract

The previous flow model is extended to apply it to the axial dispersion of fluid in bubble columns of turbulent flow regime, by applying the analysis of Taylor and Tichacek.
Axial dispersion coefficients are calculated theoretically by using the data of gas hold-up distribution and effective turbulent viscosity, both obtained previously.
A correlation for axial Peclet numbers in relation to radial Peclet numbers and radial velocity distribution is developed, taking column diameter and superficial gas velocity as variables.