SPP 1506: Transport Processes at Fluidic Interfaces

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In multiphase flow systems there are several physico-chemical processes that determine the systems behaviour, e.g., the fluid dynamics in the different fluids and the dynamics of the interfaces, heat and mass-transport between the fluids, adsorption effects at the interface and transport of species on the interface, variable surface properties, phase changes. In general these processes are strongly coupled and properties of the interface play a crucial role. A rigorous understanding of the behaviour of such very complex flow problems must be based on mathematical models accounting especially for local processes at the interface. The aim of this Priority Programme is to further develop and expand such mathematical models, to analyse their mathematical properties and to develop and advance numerical methods for the rigorous simulation of these models. The realisation of this requires interdisciplinary research with expertise from applied analysis, numerical mathematics, surface physics as well as appropriate research areas in the engineering sciences. Important goals of the Priority Programme are: (1) derive and expand mathematical models that describe relevant physico-chemical interface phenomena. Improve and deepen the understanding of mechanisms and phenomena occurring at fluidic interfaces by means of rigorous mathematical analysis of the underlying systems of partial differential equations; (2) development and analysis of numerical methods for the simulation of multiphase flow problems, which resolve the local processes at the interface; (3) validation of the mathematical models and the numerical simulation methods by means of specifically designed experiments. A long-term vision is that the validated models and simulation tools developed in the Priority Programme induce significant advances in future high-tech applications in, for example, micro-reactors, multiphase reactors in chemical engineering, micro process engineering etc.