Abstract
AbstractThe interaction between impact of a 3.2‐mm drop and a water layer over the soil surface was studied by simulating drop impact through the solution of the Navier‐Stokes and continuity equations for a viscous and incompressible fluid on an Eulerian grid, using a finite difference method. The simulation was validated by experiments. The velocity field produced by the simulation showed a reversal of the velocity vectors at the time of maximum crater development, followed by crater collapse and formation of the Rayleigh jet. A comparison of measured and simulated crater and crown development showed good agreement. The energy balance from the computer simulation showed that the shear energy development along the bottom of the pool reached a maximum value during the crater collapse when the velocity vectors in the corresponding velocity field were pointing inwards and upwards.
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