STOCHASTIC-MODEL OF AN AGITATED GAS-LIQUID SYSTEM

A stochastic model simulating gas bubble motion is presented for a cylindrical system charged with a gas-liquid mixture agitated by a six-blade disc turbine impeller. The model describes positions, sizes and velocities of all bubbles in a part of the vessel (representing the whole system) as a function of time. Local hold-up distribution in the whole system as the main result of the simulation is in a good agreement with the experimental results. Moreover, the model has been successfully used for determination of a bubble residence time distribution and for simulation of bubble trajectories.