Simulation of Turbulent Flows with and without Combustion with Emphasis on the Impact of Coherent Structures on the Turbulent Mixing James J empirically informed zwischen Reflektion und Handlungsempfehlungen empirically informed Emphasizing research as a learning and experiential process while providing students with the encouragement and skills needed for success in proposal writing The work has shown the limitations of the steady state simulations and acknowledged the need of applying high fidelity unsteady methods for the calculation of flows with pronounced unsteadiness promoted by large scale coherent structures or other sources The effective mixing of entrained fluids to a molecular level is a vital part of the dynamics of turbulent flows