High-fidelity simulations of premixed turbulent flame-wall interaction

对墙体附近发生的燃烧现象的基本认识仍然有限。这可以归因于这样一个事实，即火焰在距离墙只有几微米的地方熄灭，从实验和计算的角度都构成了挑战。火焰与壁面的相互作用在决定燃烧室寿命方面起着关键作用。随着当前汽车和航空航天工业向小型燃烧室发展的趋势，火焰-壁面相互作用(FWI)现象因其对污染物形成和火焰稳定性的影响而变得越来越重要。此外，对于非反应流动的近壁湍流的处理仍然是一个难题，而且往往是实际应用中流动预测的限制因素。

The fundamental understanding of the combustion phenomena taking place in the vicinity of walls remains limited. This can be attributed to the fact that flame quenchingoccurs at only a few micrometers away from the wall posing a challenge from both anexperimental and computational point of view. The interaction of the flame with thewalls plays a key role in determining the lifespan of the combustors. With the currenttrend in the automotive and aerospace industries pushing towards smaller combustors,the phenomenon of flame-wall interaction (FWI) is becoming increasingly importantdue to its implications on pollutant formation and flame stability. Furthermore, thetreatment of near-wall turbulence for non-reacting flows is still a difficult problem andquite often the limiting factor in flow prediction of practical applications.