Towards in-flight applications? A review on dielectric barrier discharge-based boundary-layer control

J Kriegseis, B Simon… - Applied …, 2016 - asmedigitalcollection.asme.org
Active control of laminar boundary layers with dielectric barrier discharge (DBD) plasma
actuators (PAs) has made considerable progress in the last 15 years. First pioneering …

Current state and future trends in boundary layer control on lifting surfaces

J Svorcan, JM Wang, KP Griffin - Advances in Mechanical …, 2022 - journals.sagepub.com
Successful flow control may bring numerous benefits, such as flow stabilization, flow
reattachment, separation delay, drag reduction, lift increase, aerodynamic performance …

Aerodynamic efficiency and performance enhancement of fixed-wing UAVs

P Panagiotou, K Yakinthos - Aerospace Science and Technology, 2020 - Elsevier
The present work aims in providing guidelines for the aerodynamic and performance
optimization of fixed-wing Unmanned Aerial Vehicles (UAVs) that operate in the low-speed …

Stabilizing the square cylinder wake using deep reinforcement learning for different jet locations

L Yan, Y Li, G Hu, W Chen, W Zhong, BR Noack - Physics of Fluids, 2023 - pubs.aip.org
We mitigate the drag and lift forces of a square cylinder at three Reynolds numbers of 500,
1000, and 2000 using deep reinforcement learning (DRL) and two different positions of a …

IR thermography for dynamic detection of laminar-turbulent transition

B Simon, A Filius, C Tropea, S Grundmann - Experiments in Fluids, 2016 - Springer
This work investigates the potential of infrared (IR) thermography for the dynamic detection
of laminar-turbulent transition. The experiments are conducted on a flat plate at velocities of …

Energy efficiency and performance limitations of linear adaptive control for transition delay

N Fabbiane, S Bagheri… - Journal of Fluid Mechanics, 2017 - cambridge.org
A reactive control technique with localised actuators and sensors is used to delay the
transition to turbulence in a flat-plate boundary-layer flow. Through extensive direct …

Experimental control of Tollmien–Schlichting waves using pressure sensors and plasma actuators

PPC Brito, P Morra, AVG Cavalieri, TB Araújo… - Experiments in …, 2021 - Springer
This manuscript presents a successful application of the inverse feed-forward control (IFFC)
technique for control of the Tollmien–Schlichting (TS) waves over a wing profile placed in an …

In-flight active wave cancelation with delayed-x-LMS control algorithm in a laminar boundary layer

B Simon, N Fabbiane, T Nemitz, S Bagheri… - Experiments in …, 2016 - Springer
This manuscript demonstrates the first successful application of the delayed-x-LMS (dxLMS)
control algorithm for TS-wave cancelation. Active wave cancelation of two-dimensional …

Cancellation of Tollmien–Schlichting waves in direct vicinity of a plasma actuator

B Simon, D Markus, C Tropea, S Grundmann - AIAA Journal, 2018 - arc.aiaa.org
The active cancellation of Tollmien–Schlichting waves is a promising and energy-efficient
laminar flow control technology with the goal of drag reduction by delaying laminar …

Tollmien–Schlichting Wave Control on an Airfoil Using Dynamic Surface Modification

JDB Wylie, S Mishra, M Amitay - AIAA Journal, 2021 - arc.aiaa.org
The present study demonstrates experimental mitigation of Tollmien–Schlichting waves on
an unswept natural laminar flow airfoil at a chord-based Reynolds number of 9.90× 10 5 …