Numerical analysis of detailed flow structures of bubble plume (1st report, calculation of bubbly flows using lagrange method)

摘要

Detailed flow structure of bubbly flows observed in a bubble plume is investigated by numerical simulation using the Lagrangian tracking method which can treat the bubble movement with high accuracy. Governing equations are formulated with emphasis on the translational motion of bubble in non uniform unsteady liquid flow. Numerical results reveal the dependency of bubble size distribution on the flow behavior and show good agreements with experimental results.