Closed-loop control of forced turbulent jets
Fluid Dynamics
2020-09-22 v1
Abstract
Closed-loop control of turbulent flows is a challenging problem with important practical and fundamental implications. We perform closed-loop control of forced, turbulent jets based on a wave-cancellation strategy. The study is motivated by the success of recent studies in applying wave cancellation to control instability waves in transitional boundary layers and free-shear flows. Using a control law obtained through a system-identification technique, we successfully implement wave-cancellation-based, closed-loop control, achieving order-of-magnitude attenuations of velocity fluctuations. Control is shown to reduce fluctuation levels over an extensive streamwise range.
Cite
@article{arxiv.2009.09299,
title = {Closed-loop control of forced turbulent jets},
author = {Igor A. Maia and Peter Jordan and André V. G. Cavalieri and Eduardo Martini and Flávio Silvestre},
journal= {arXiv preprint arXiv:2009.09299},
year = {2020}
}