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🧫 Brownian Pore Chamber: Einstein Diffusion, Size Sieving and Membrane Flux in 3D

Hundreds of Brownian spheres diffuse through a porous membrane in a glass chamber: Stokes-Einstein diffusion coefficients, mean-squared displacement, size-selective pores and equilibration compared with Hille pore theory and Fick's law.

Physics & Mechanics3DModerate60 FPS📱 Mobile-adapted🟠 Blender

⚙ Under the hood

Hundreds of Brownian spheres diffuse through a porous membrane in a glass chamber: Stokes-Einstein diffusion coefficients, mean-squared displacement, a size-selective molecular sieve and equilibration time compared with Hille pore theory and Fick's second law.

Brownian MotionDiffusionStokes-EinsteinMembrane PoresFick's LawThree.jsBlender

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install