Fluids & atmospheric physics › Surface tension and droplets
Surface tension and droplets laboratory
Explore cohesion, wetting, contact angle, oscillation, coalescence, capillary effects and surfactants.
What to notice
Surface tension acts to minimise surface area, while gravity, inertia and adhesion deform the droplet. Strong adhesion produces spreading and a smaller contact angle; weak adhesion produces beading. Surfactants reduce surface tension, making deformation and breakup easier.
ΔP = 2γ/R · Bo = ρgL²/γ · We = ρv²L/γ · Ca = μv/γ
Educational reduced-order model. It is not an engineering CFD, molecular-dynamics or precision wetting-analysis tool.