液滴的脉动雾化

Atomization of a Liquid Drop by Pulsation

1.
Department of Mechanical and Aeronautical Engineering Clarkson University, Potsdam, NY 13699, U. S. A;
2.
Shanghai University, Shanghai Institute of Applied Mathematics and Mechanics, Shanghai 200072, P. R. China

摘要: 应用稳定性分析,本文显示一球形液滴可以由参数共振而促使形成比原液滴直径小得多的小微滴。表面张力和周围气体的密度将延缓这一雾化过程。与达朗伯表观体力有关的两重迭平面流体层的界面不稳定性与参数共振引起的界面不稳定性有着密切的关系。
- 雾化 /
- 不稳定性 /
- 参数共振
Abstract: By using stability analysis, it is shown that a spherical drop can be resonated parametrically to initiate the formation of droplets of diameters much smaller than that of the original drop. Both the surface tension and the density of the surrounding gas tend to retard this atomization process. The interfacial instability associated with the D'Alembert apparent body force in two superposed flat fluid layers is shown to be closely related to the interfacial instability caused by parametric resonance.
- atomization /
- instability /
- parametric resonance

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