Next Article in Journal
Climate-Compatible Air Transport System—Climate Impact Mitigation Potential for Actual and Future Aircraft
Next Article in Special Issue
Analysis of Pilot-Induced-Oscillation and Pilot Vehicle System Stability Using UAS Flight Experiments
Previous Article in Journal
Results of Long-Duration Simulation of Distant Retrograde Orbits
Previous Article in Special Issue
An Empirical Study of Overlapping Rotor Interference for a Small Unmanned Aircraft Propulsion System
Article Menu

Export Article

Open AccessCommunication
Aerospace 2016, 3(4), 39; doi:10.3390/aerospace3040039

Effect of Leading-Edge Slats at Low Reynolds Numbers

Aerospace Engineering Department, Embry Riddle Aeronautical University, Prescott, AZ 86301, USA
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Ning Qin
Received: 5 August 2016 / Revised: 10 October 2016 / Accepted: 13 November 2016 / Published: 17 November 2016
(This article belongs to the Collection Unmanned Aerial Systems)
View Full-Text   |   Download PDF [9912 KB, uploaded 17 November 2016]   |  


One of the most commonly implemented devices for stall control on wings and airfoils is a leading-edge slat. While functioning of slats at high Reynolds number is well documented, this is not the case at the low Reynolds numbers common for small unmanned aerial vehicles. Consequently, a low-speed wind tunnel investigation was undertaken to elucidate the performance of a slat at Re = 250,000. Force balance measurements accompanied by surface flow visualization images are presented. The slat extension and rotation was varied and documented. The results indicate that for small slat extensions, slat rotation is deleterious to performance, but is required for larger slat extensions for effective lift augmentation. Deployment of the slat was accompanied by a significant drag penalty due to premature localized flow separation. View Full-Text
Keywords: slat; slot; low Reynolds number; stall control; flow control; unmanned aerial vehicle slat; slot; low Reynolds number; stall control; flow control; unmanned aerial vehicle

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Traub, L.W.; Kaula, M.P. Effect of Leading-Edge Slats at Low Reynolds Numbers. Aerospace 2016, 3, 39.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Aerospace EISSN 2226-4310 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top