Measurement of turbulence of gas-liquid two-phase flow in bubble column

摘要

Turbulent bubbly air/water two-phase up and down flows in bubble column were investigated. Important flow quantities such as local void fraction, liquid velocity and the turbulence intensity were measured using both LDV and PIV. The presence of the bubbles increases the level of turbulence in the flow. Measurements of liquid veloicties in bubble columns, at different superficial gas velocities, and at different height, the flow structures show tours vortices and axisymmetric flow.