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Droplet Splash Simulator (2D)

Interactive 2D side-view droplet-splash simulator: drop a liquid sphere from a chosen height and watch the crown splash form (or not), driven by the real Weber-number splash criterion.

Fluid Dynamics & Aerodynamics2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

This 2D side-view simulator drops a liquid sphere from an adjustable height onto a pool and reproduces the real physics that decides whether the impact splashes: the Weber number We = ρv²D/σ, computed live from the actual fall speed, droplet diameter and the chosen liquid's density, surface tension and viscosity. Below the splash threshold the droplet spreads into a calm dome and retracts; above it a crown of secondary droplets tears off the rim exactly as high-speed photography shows, followed by a rebounding Rayleigh jet at the impact point. Switch between water, oil, glycerin and alcohol to see how surface tension and viscosity shift the splash threshold, and watch the live Weber, Reynolds and Ohnesorge readouts update with every drop.

⚙ Under the hood

A 2D side-view droplet-splash simulator that drops a liquid sphere from an adjustable height and uses the real Weber-number splash criterion to decide whether a crown of secondary droplets forms or the impact settles into a calm dome.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install