This is one of the largest CFD simulations ever done, on the world's largest GPU server, the GigaIO SuperNODE, equipped with 32x AMD Instinct MI210 64GB GPUs, for a total 2TB VRAM. The simulation shows the 62m long Concorde before landing at 300km/h airspeed and 10° angle of attack, for 1 second in flight. The Reynolds number based on wingspan is 146 Million. The simulation resolution is 2976×8936×1489 = 40 Billion cells, with a tiny cell size of ()³. 67268 time steps were computed in 29 hours, plus 4 hours for rendering 5×600 4K frames, for a total runtime of 33 hours. The video shows velocity-magnitude colored Q-criterion isosurfaces. A single frame of the velocity field is 475GB, so the 600 frames visualize a total of 285TB data. This is a test of the newly implemented free-slip boundaries, which are a more accurate model for the turbulent boundary layer than no-slip boundaries. On the same hardware, commercial CFD software like Ansys or Star-CCM would need several years of compute time for such a simulation. FluidX3D does it over the weekend. The FluidX3D source code is on GitHub, and the software is free for non-commercial use: Concorde model: :1176931/files Timestamps 0:00 front view 0:10 follow view 0:20 wing view 0:30 top view 0:40 side view #FluidX3D #Concorde #CFD #GPU #AMDInstinct
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