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Drop impact experiments on cylindrical pillars

The paper investigates the formation and instability of fluid sheets created by the impact of drops on a plane surface. After collision, the liquid drop extends into a fluid sheet until a maximum diameter is reached. It then destabilizes and undergoes a fragmentation process, creating liquid ligaments and droplets. The phenomenon is investigated using Newtonian and viscoelastic liquid drops that are generated from different heights. Significant differences are observed in the case of a high-viscosity liquid. Several bodily fluids are also investigated.

Petre-Vlad ŢĂRANU
Hydraulics Department, Faculty of Energy Engineering, University "Politehnica"of Bucharest
Romania

Ioana RĂSUCEANU
Hydraulics Department, Faculty of Energy Engineering, University "Politehnica"of Bucharest
Romania

Claudiu PĂTRAŞCU
Hydraulics Department, Faculty of Energy Engineering, University "Politehnica"of Bucharest
Romania

Corneliu BĂLAN
Hydraulics Department, Faculty of Energy Engineering, University "Politehnica"of Bucharest
Romania

 


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