Numerical analysis of the deformation and solidification of a single droplet impinging onto a flat substrate

✍ Scribed by C. San Marchi; H. Liu; E. J. Lavernia; R. H. Rangel; A. Sickinger; E. Muehlberger

• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 829 KB
• Volume: 28
• Category: Article
• ISSN: 0022-2461
• DOI: 10.1007/bf00354253

✦ Synopsis

An existing model has been modified to explore the deformation and solidification of a single droplet impinging on a substrate. The modification accounts for possible solid fraction of material at impact. Numerical results predict that the kinetic energy dominates the process at impinging velocities greater than about 100 ms 1. In addition, the thermal diffusivity of the solidifying material controls the process, but the temperature of the substrate relative to the melting temperature of the material must be considered when comparing materials. It is believed that droplets solidifying into thinner, wider discs would reduce porosity; therefore, dense materials accelerated to high speed would solidify into masses with the highest bulk density.