Surrogate-based optimisation of a centrifugal fan

Centrifugal fans are widely used in building ventilation and air-conditioning, and are under growing pressure to be more efficient and quieter at the same time. A new paper in Engineering Applications of Computational Fluid Mechanics validates CFD models for both the aerodynamics and the aeroacoustics of a backward-curved centrifugal fan, then trains surrogate models on those simulations to optimise for both objectives together.