中文摘要：

水花燃烧的大旋涡的模拟在它的快速的发展中。不同燃烧模型被不同调查者使用。然而，这些模型被详细试验性的数据少些验证。在这份报纸，乙醇水花空气燃烧的大旋涡的模拟(LES ) 用一条 Eulerian-Lagrangian 途径，一个 subgrid 规模动能压力模型，和一个过滤有限率的燃烧模型被做，忽视亚格子规模反应率。模拟结果与在文学的试验性的爸爸相比并且详细验证。统计上获得的 LES 平均温度比雷纳兹在对试验性的结果的好一些的同意(RANS ) 用最复杂的概率密度功能(PDF ) 当模特儿平均的气体方程燃烧模型。即时 LES 结果在高温度的火焰地区和燃料蒸汽集中地图附近显示出 shear 区域的协调结构，显示微滴在这被集中砍区域。即时温度，氧和二氧化碳集中地图显示出在协调结构和燃烧反应之间的靠近的相互作用。

英文摘要：

Large-eddy simulation of spray combustion is under its rapid development. Different combustion mod- els were used by different investigators. However, these models are less validated by detailed experimental data. In this paper, large-eddy simulation （LES） of ethanol spray-air combustion was made using an Eulerian-Lagrangian approach, a subgrid-scale kinetic energy stress model, and a filtered finite-rate combustion model, neglecting the sub-grid scale reaction rate. The simulation results are compared with experimental dada in the literature and vali- dated in detail. The LES obtained statistically averaged gas temperature is in much better agreement with the ex- perimental results than Reynolds averaged （RANS） modeling using the most complex probability density function （PDF） equation combustion model. The instantaneous LES results show the coherent structures of the shear region near the high-temperature flame zone and the fuel vapor concentration map, indicating that the droplets are concen- trated in this shear region. The instantaneous temperature, oxygen and carbon dioxide concentration maps show the close interaction between the coherent structures and the combustion reaction.