A shear layer formed by two unidirectional gas streams of different velocities with a multisize (polydisperse) spray of evaporating droplets suspended in one of the gas streams is considered here. Similarity solutions are presented for the evolution in droplet size distributions across the shear layer and the effects of various initial droplet size distributions on the profiles of vapor concentrations are examined. A qualitative comparison between the present results for typical computed total mass distributions of the liquid phase and experimental data reported by Lazaro and Lasheras [Phys. Fluids A 1, 1035 (1989); Proceedings of the 22nd Symposium (International) on Combustion (The Combustion Institute, Pittsburgh, 1988), pp. 1991–1998; J. Fluid Mech. 235, 143 (1992)] shows strong similarity between the two sets of profiles. This supports the assumptions and boundary conditions employed in the present theoretical study. The general behavior of the theoretical SMD (Sauter mean diameter) distribution of the spray across the shear layer also compares well with the reported experimental results of Lazaro and Lasheras.

中文翻译：

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剪切层流中多分散液体喷雾的理论研究

由两种不同速度的单向气流形成的剪切层，具有多尺寸（多分散）蒸发喷雾 飞沫这里考虑悬浮在一种气流中的悬浮液。提出了相似的解决方案。水滴 剪切层上的粒径分布以及各种初始应力的影响 水滴检查蒸气浓度分布图上的尺寸分布。典型结果的典型总质量分布的当前结果之间的定性比较。液体Lazaro和Lasheras报道的相和实验数据[Phys。流体A 1，1035（1989）; 程序 的 所述22届 研讨会（国际）上 燃烧 （ 燃烧研究所，匹兹堡，1988年），第1991–1998页；J.流体机械。[图235，143（1992）]显示了两组轮廓之间的强相似性。这支持了假设，并且边界条件在本理论研究中使用。喷雾在剪切层上的理论SMD（苏特平均直径）分布的一般行为也与Lazaro和Lasheras的实验结果进行了比较。