Turbulent combustion and detonation processes in hydrogen-air mixtures

With respect to the safe use of hydrogen, it is of great interest to know how the pressure forces of fast hydrogen combustion processes can be reduced. The numerical study of highly turbulent or detonation driven propagation processes is relatively recent because it depends on the availability of high performance computers and specialized numerical algorithms to solve the governing equations of reactive fluid dynamic processes. Numerical simulation can be used at a number of levels to study turbulent combustion and detonations. What's to be done is both, numerical simulation in its use as a vehicle for looking at fundamental interactions, and in more applied applications, using numerical simulation as a tool that can predict turbulent flame accelerating processes and decoupling or re-initiation of detonation waves in complex geometries of technical applications. Today, modeling and simulation show good agreement to a variety of fast combustion phenomena observed in experiments. Results of reactive computational fluid dynamics codes deliver inputs to reduce experimental parameters and provide the basis for an innovative design of arresters for detonation processes.