Splash Formation by Water Drops
The impact of a 2 mm diameter water drop onto a deep water bath was studied experimentally. The different regimes of cavity collapse and jet formation behaviour were mapped out on a Froude-Weber plot. Two transition zones were identified where high speed jets were formed without bubble entrapment. This singular behaviour is surface tension driven. The numerical simulations of Morton were compared with photographs of dyed drops and confirmed that smaller vortex rings penetrating deep into the water bath are formed at Weber numbers much higher than 64.
KeywordsVortex Ring Froude Number Water Drop Drop Shape Cavity Collapse
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