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

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