Low-temperature flames such as cool flames, warm flames, double flames, and auto-ignition assisted flames play a critical role in the performance of advanced engines and fuel design. In this paper, an overview of the recent progresses in understanding low-temperature flames and dynamics as well as their impacts on combustion, advanced engines, and fuel development will be presented. Specifically, at first, a brief review of the history of cool flames is made. Then, the recent experimental studies and computational modeling of the flame structures, dynamics, and burning limits of non-premixed and premixed cool flames, warm flames, and double flames are presented. The flammability limit diagram and the temperature-dependent chain-branching reaction pathways, respectively, for hot, warm, and cool flames at elevated temperature and pressure will be discussed and analyzed. After that, the effect of low temperature auto-ignition of auto-igniting mixtures at high ignition Damköhler numbers at engine conditions on the propagation of cool flames, warm flames, and double flames as well as turbulent flames will be discussed. Finally, a new platform using low temperature flames for the development and validation of chemical kinetic models of alternative fuels will be presented. Discussions of future research of the dynamics and control of low temperature flames under engine conditions will be made.

低温火焰，例如凉爽的火焰，温暖的火焰，双重火焰和自动点火辅助火焰，在先进发动机和燃料设计的性能中起着至关重要的作用。在本文中，将概述在理解低温火焰和动力学及其对燃烧，先进发动机和燃料开发的影响方面的最新进展。具体而言，首先，简要回顾一下冷焰的历史。然后，介绍了非预混和预混冷焰，暖焰和双焰的火焰结构，动力学和燃烧极限的最新实验研究和计算模型。分别针对热，热，高温高压下的冷火焰将进行讨论和分析。此后，将讨论在发动机工况下高点火达姆勒数下的自燃混合物的低温自燃对冷火焰，暖火焰，双火焰以及湍流火焰的传播的影响。最后，将介绍一个使用低温火焰的新平台，用于开发和验证替代燃料的化学动力学模型。将对发动机条件下低温火焰的动力学和控制的未来研究进行讨论。将讨论双火焰以及湍流火焰。最后，将介绍一个使用低温火焰的新平台，用于开发和验证替代燃料的化学动力学模型。将对发动机条件下低温火焰的动力学和控制的未来研究进行讨论。将讨论双火焰以及湍流火焰。最后，将介绍一个使用低温火焰的新平台，用于开发和验证替代燃料的化学动力学模型。将对发动机条件下低温火焰的动力学和控制的未来研究进行讨论。