Liquid fuel combustion: Droplets formation, vaporization and combustion

喷雾/液滴的形成、蒸发和燃烧是控制燃气轮机和柴油发动机等发电系统的效率和排放的过程。在这些系统的燃烧室中，液体燃料在喷射后分解成液滴，以增加氧化剂和燃料之间的混合，但更重要的是缓解和加强液体燃料的汽化过程，从而改善燃烧性能。因此，了解这些流程对于这些系统的设计和开发至关重要。尽管气体流动中液体射流的特性已经得到了广泛的研究，但仍然存在许多挑战。这主要是由于a)这种两相流动现象的复杂性，以及b)这些过程取决于发动机负荷要求和喷射系统，以及周围流体流动的状态和条件。

Spray/Droplets formation, vaporization and combustion are the processes controlling the efficiency and emissions of power generation systems such as gas turbine and diesel engine. In the combustion chamber of these systems, upon its injection, liquid fuel breaks up into droplets to increase the mixing between the oxidant and fuel but more importantly to ease and enhance the vaporization process of liquid fuel and hence the combustion performance. Therefore, understanding these processes is crucial for the design and development of these systems. Although the characteristics of a liquid jet injected into a gaseous flow have been studied extensively, there still remain many challenges. This is due mainly to a) the complex nature of this two-phase flow phenomenon and b) the fact that these processes depend on the engine load requirements as well as the injection system, and state and conditions of the surroundings fluid flow.