Navier–Stokes · incompressible flow
The moving threads are passive tracers carried by a numerical velocity field. Advection transports momentum, viscosity smooths neighbouring velocities, and a pressure projection removes divergence so fluid does not appear or vanish. Drag across the field to inject momentum and make vortices.
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Re ≈ 0 · |u| 0.00 · |ω| 0.00
