Detailed 3D modelling of mass transfer processes in two phase flows with dynamic interfaces

摘要

We developed a method that will enable us to determine mass transfer coefficients for audlarge number of two phase flow conditions based on numerical simulation. A three-dimensionaluddirect numerical simulation based on the Front Tracking technique taking into account the massudtransfer process was chosen for this purpose. The dissolved species concentration in the liquidudphase is tracked using a scalar mass balance while the value of the concentration at the interfaceudis determined via an immersed boundary technique. In the present study, simulations are carriedudout to investigate the effect of the bubble shape on the dissolved species concentration field