A south-westerly wind through the real campus, built from the 3D BAG building heights and seen from above the south-east, with the wind running left to right. The wind speed 9 m above the ground is a glowing sheet with tracer streaks, and the buildings rise through it, casting shadows in a sun from the south-west. Sheltered pockets form in the lee of each block and jets run between them. Matrix VI, the Fermioniq office, is the yellow building.
Fermioniq·8 October 2026
Figure 1
950 × 720 × 117 lattice (80 M cells), dx = 2 m · NVIDIA GH200 · rendered in Blender Cycles on the same GPU
How it was checked
Reference
Collision self-check: 3D Taylor–Green viscosity to 0.5%, float64 and float32; smoke run finite, peak Mach 0.12, mass drift 9e-5
Caveat
Building heights are drawn ×2 so the blocks read; the simulation uses the true heights. The flow sees LoD1.3 blocks at 2 m; the render shows the 3D BAG LoD2.2 meshes with their pitched roofs. Trees and terrain are not modelled. 3DBAG by TU Delft, CC BY 4.0.
More from the reel
Simulations written with Sofia, one per physics domain, each verified against a reference.
