High fidelity spray flame modelling without ad-hoc tuning of the injection parameters is proposed for an Euler-Lagrangian LES description of turbulent combustion in swirled two-phase flow chambers. It is tested in a laboratory burner (SICCA-Spray rig from EM2C), which comprises both a simplex pressure swirl and an airblast atomiser. Relevant phenomena controlling the liquid spray inside the injector including primary and edge atomisation from a pressure swirl and an airblast atomiser respectively, secondary atomisation, evaporation and the formation and dynamics of the liquid film that forms on the inner injector wall are taken into account. Particular attention has been applied to understanding the shape of the droplet diameter probability distribution function and how each atomisation model contributes to it. Results show excellent agreement of the spray statistics measured experimentally with and without combustion. A sensitivity analysis of the model parameters shows that the models are sufficiently insensitive to user chosen parameters, which, together with their relatively low computational cost, make these models ideal candidates for industrial applications.

针对涡流两相流室中湍流燃烧的欧拉-拉格朗日 LES 描述，提出了无需特别调整喷射参数的高保真喷雾火焰建模。它在实验室燃烧器（来自 EM2C 的 SICCA-Spray rig）中进行了测试，该燃烧器包括单工压力漩涡和空气喷射雾化器。控制喷射器内液体喷射的相关现象包括分别来自压力旋流和鼓风雾化器的初级和边缘雾化、二级雾化、蒸发以及在喷射器内壁上形成的液膜的形成和动力学。已特别注意了解液滴直径概率分布函数的形状以及每个雾化模型如何对其做出贡献。结果表明，在燃烧和不燃烧的情况下，实验测量的喷雾统计数据非常一致。模型参数的敏感性分析表明，模型对用户选择的参数足够不敏感，再加上它们相对较低的计算成本，