Luminary couples two large physics models in an aerostructural loop on a transonic wing

Luminary Cloud replaces the solvers in a static aeroelastic loop on a transonic swept wing. With SHIFT-Wing (pressure and shear on the surface) coupled to the TACS structural solver, a converged loop took 8 to 11 minutes on one NVIDIA T4 against about 4 hours for the CFD loop on three H100 GPUs; on three wings both converged in four iterations and the predicted lift reduction differed by 0.2 to 0.8 percentage points. A second model, SHIFT-Wingbox, trained on about 1,400 TACS solutions, then replaces the structure, and the two surrogates agree with the SHIFT-Wing and TACS loop within 1 percentage point of lift reduction and 0.04° of tip twist.

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