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Project Sebastian Aland

A diffuse interface model for multiphase flow with surface-active particles


We use diffuse-interface models to describe complex interfacial phenomena, to derive efficient numerical algorithms and to validate the simulation results using experimental data. The diffuse interface model accounting for soluble surfactants has been shown to work well, but the numerics are still not good enough to reproduce experimental results in real applications. Therefore we will derive improved time discretizations that may enhance the applicability of diffuse-interface models. We will apply the model to soluble surfactants and mass transfer in Taylor flow scenarios and compare our results to other numerical methods as well as to experiments. In parallel to that, we investigate the NSCHSPFC model for particle-covered interfaces. We will carefully examine this promising new model, use it to simulate for real-world scenarios and compare simulation results to experiments.