Two-stage ignition and flame stabilisation in engine-relevant conditions

该项目旨在揭示柴油发动机中存在的温度和压力条件下的点火和火焰稳定机制，尽管它们对污染物和燃油效率有重要影响，但目前对其的理解非常有限。使用大规模并行超级计算资源，将进行迄今为止最详细，最直接的点火和火焰稳定数值模拟-它们将是三维的，并使用能够解释低温动力学和两阶段点火的详细化学模型。这些数据的分析旨在揭示点火和火焰稳定性如何取决于关键的湍流和化学动力学参数，从而有助于开发低排放柴油发动机。

This project aims to reveal the mechanisms of ignition and flame stabilisation in the temperature and pressure conditions that exist in diesel engines, understanding of which is currently very limited despite their significant bearing on pollutants and fuel efficiency. Using massively parallel supercomputing resources, the most detailed, direct numerical simulations of ignition and flame stabilisation to date will be performed - they will be three-dimensional and use a detailed chemistry model able to account for low-temperature kinetics and two-stage ignition. Analysis of these data aims to reveal how ignition and flame stabilisation depends on key turbulence and chemical kinetic parameters, thus contributing to developing low-emissions diesel engines.