Data for: Vortex-ring-induced elliptical drop deformation process in ambient liquid under an impact: The effects of the drop shape and other parameters

Published: 11 May 2020| Version 1 | DOI: 10.17632/9ct85w2xkj.1
Contributors:
Shanqun Chen,
Bin Liao

Description

In this paper, the elliptical drop deformation process in ambient liquid under an impact was systematically studied based on an experimental method combined with computational fluid dynamics (CFD). The experiments were conducted on a free-falling drop-tower facility, and the images of the drop shapes were captured by high-speed photography. In the numerical simulation, the Front-Tracking method was adopted to predict the drop deformation process, and a satisfactory consistency was obtained between experimental and numerical results. Furthermore, the effects of nondimensional parameters (i.e., shape parameter e, viscosity ratio , and density ratio ) on the vortex dynamics during the drop deformation process in ambient liquids were systematically investigated. The severity of the elliptical drop deformation process is apparently promoted by e, i.e., with larger e, the vortex dynamics during the drop deformation process is strengthened, and a more severe deformation process occurs. With increasing , the vortex dynamics is gradually weakened. Under a relatively low , the vortex dynamics can be further strengthened by increasing e, while the vortex dynamics shows an opposite trend by decreasing e under a relatively high . With increasing , the vortex dynamics is also apparently strengthened. Under the incompressible condition, the vortex dynamics is approximately unaffected by increasing e.

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