Alfredo Pinelli

Gradient-free learning of a closed-loop wall controller for turbulent drag reduction

Giorgio Maria Cavallazzi, Miguel Pérez Cuadrado, Alfredo Pinelli

Closed-loop wall control learnt by multi-agent reinforcement learning can lower skin-friction drag in turbulent channels, but these gradient-based policies are trained on small periodic boxes and exhibit reduced performance when carried over to a larger domain. We recently showed…Read more