# Drag reduction of a car model by linear genetic programming control

@article{Li2017DragRO,
title={Drag reduction of a car model by linear genetic programming control},
author={Ruiying Li and B. R. Noack and Laurent Cordier and Jacques Bor{\'e}e and Fabien Harambat},
journal={Experiments in Fluids},
year={2017},
volume={58},
pages={1-20}
}
• Published 8 September 2016
• Engineering
• Experiments in Fluids
We investigate open- and closed-loop active control for aerodynamic drag reduction of a car model. Turbulent flow around a blunt-edged Ahmed body is examined at $$Re_{H}\approx 3\times 10^{5}$$ReH≈3×105 based on body height. The actuation is performed with pulsed jets at all trailing edges (multiple inputs) combined with a Coanda deflection surface. The flow is monitored with 16 pressure sensors distributed at the rear side (multiple outputs). We apply a recently developed model-free control…
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