Impact of a Liquid Drop Against a Flat Surface

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Abstract
Lagrangian methods are used with an assumed flow field and a truncated sphere model to analyze the dynamical process of a liquid drop impacting aflat, rigid surface. The resulting differential equation for drop height as a function of time during contact is solved numerically for several values of the three parameters: Weber number of the incoming drop, ratio of the surface tension in air to that at the contact surface, and the viscosity parameter. The drop contact radius as a function of time is also calculated and compared with some experimental results in the literature.

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