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Fluid · Nuclear

3D Semi-Lagrangian Advection for Nuclear

Apply the 3d semi-lagrangian advection to real nuclear problems — in the browser, with AI assistance.

This is the 3d variant of the Semi-Lagrangian Advection. Semi-Lagrangian schemes trace characteristics backward in time and interpolate, giving stability at large timesteps — the basis of Stam's Stable Fluids.

In nuclear, teams face challenges like neutron transport, thermal-hydraulics, safety margins. The 3d semi-lagrangian advection directly supports use cases such as reactor kinetics, shielding attenuation, decay-heat modeling, and PolySim's AI Copilot can recommend settings and catch common setup errors before you run.

Typical Nuclear use cases

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