Experimental and Numerical Studies on High-Pressure, High-Temperature Laminar and Turbulent Spark Ignition and Combustion Processes of Ammonia/Hydrogen/Air Mixtures

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The scientific aim of this research project is to numerically model laminar and turbulent spark ignition processes of zero carbon fuels (e.g. hydrogen, ammonia). The focus is on spark energies near the minimum ignition energy, in near-isotropic turbulence over a wide range of flow conditions (e.g. turbulence intensity) and of combustion system parameters (e.g. initial temperatures, operating pressures, mixture compositions). The project will be based on a hierarchical modeling concept with different ingredients: detailed numerical simulations, a reduction methodology for the complex chemistry-transport interaction based on reaction-diffusion manifolds, and a statistical approach for the turbulence-chemistry interaction based on the solution of the transport equation for the joint probability density function. This proposal is imbedded in the call for joint projects (“Taiwan-NSTC-DFG Joint Research Projects“). The Taiwanese partner (Prof. S. Shy) will perform corresponding experimental investigations of the ignition of zero carbon fuels (e.g. hydrogen, ammonia).