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⚛️ Lennard-Jones Fluid Dynamics (2D)

A 2D molecular dynamics simulation of a Lennard-Jones fluid: velocity-Verlet integration, a velocity-rescaling thermostat, and a cell-list neighbour search let you watch gas, liquid and solid phases emerge from one pair potential.

Physics & Mechanics2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

A 2D molecular dynamics simulation of a Lennard-Jones fluid: atoms interact through the V(r)=4ε[(σ/r)¹²−(σ/r)⁶] pair potential, integrated with velocity-Verlet and held at a target temperature by a velocity-rescaling thermostat. Adjust temperature, particle count and interaction strength to watch the system move between gas, liquid and solid phases, with live readouts of temperature, energy, pressure and average speed.

molecular dynamicsLennard-Jonesphysicsthermodynamicsphase transitionparticle simulation

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