GPU-Accelerated Semi-Implicit Euler for Rail & Transit

This is the gpu-accelerated variant of the Semi-Implicit Euler. Semi-implicit (symplectic) Euler updates velocity before position, conserving energy well over long runs — the default for real-time particle and rigid-body physics.

In rail & transit, teams face challenges like aerodynamics, track loading, braking thermal. The gpu-accelerated semi-implicit euler directly supports use cases such as train aerodynamics, rail structural fea, brake thermal analysis, and PolySim's AI Copilot can recommend settings and catch common setup errors before you run.