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

本研究项目的科学目标是对零碳燃料(如氢、氨)的层流和湍流火花点火过程进行数值模拟。重点研究了在各种流动条件(如湍流强度)和燃烧系统参数(如初始温度、工作压力、混合物组成)范围内的近各向同性湍流中最小点火能量附近的火花能量。该项目将基于不同成分的分层建模概念：详细的数值模拟，基于反应-扩散流形的复杂化学-输运相互作用的简化方法，以及基于联合概率密度函数的输运方程的解的湍流-化学相互作用的统计方法。这一建议包含在联合项目(“台湾-NSTC-DFG联合研究项目”)的呼吁中。台湾合作伙伴(S.Shy教授)将对零碳燃料(如氢、氨)的点火进行相应的实验研究。

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).