Cruz-Mazo Francisco, Montanero J M, Gañán-Calvo A M
Departamento de Ingeniería Mecánica, Energética y de los Materiales and Instituto de Computación Científica Avanzada, Universidad de Extremadura, E-06006 Badajoz, Spain.
Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos, Universidad de Sevilla, E-41902 Sevilla, Spain.
Phys Rev E. 2016 Nov;94(5-1):053122. doi: 10.1103/PhysRevE.94.053122. Epub 2016 Nov 29.
We identify and analyze the perfectly regular dripping mode of flow focusing. This mode occurs within narrow intervals of injected flow rates and applied pressure drops and leads to homogeneous-size droplets with diameters similar to or smaller than that of the discharge orifice. The balance between the local acceleration of the fluid particle and the applied pressure drop yields the scaling law for the droplet diameter. This scaling law is validated experimentally with excellent accord.
我们识别并分析了流动聚焦中完全规则的滴流模式。这种模式出现在注入流速和施加压降的狭窄区间内，并产生直径与排放孔直径相似或更小的均匀尺寸液滴。流体颗粒的局部加速度与施加的压降之间的平衡产生了液滴直径的标度律。该标度律通过实验得到了很好的验证。
