Effects of leading-edge vibration on a spanwise-tensioned membrane at low Reynolds number

Citations of this article
Mendeley users who have this article in their library.


This paper compares the wake characteristics and aerodynamic forces for spanwise-tensioned membranes with free and fixed leading edges (LE). LE vibration was generated by placing the membrane within an air flow with a sufficient onset velocity. The flow velocity in the wake of the free or fixed LE membrane was measured using a hot-wire anemometer sensor placed downstream of the trailing edge (TE), and the aerodynamic forces were measured using a pair of load cells. The silicone rubber membrane wings were tested at varying angles-of-attack (−8 to 40°), applied strain (2 to 8%), and a nominal Reynolds number of 55,000. The force results show that the LE vibration increased the lift coefficient but also induced a higher drag penalty, particularly in the pre-stall region, resulting in a lower aerodynamic efficiency than the fixed-LE membranes. As indicated by the hot-wire results, this was due to a considerable broadening of the wake caused by the free LE and a breakdown of the organized fluid-structure interaction and energy spectrum compared to a fixed LE.




Zhang, Z., Wrist, A., & Hubner, J. P. (2017). Effects of leading-edge vibration on a spanwise-tensioned membrane at low Reynolds number. Journal of Fluids and Structures, 69, 441–457. https://doi.org/10.1016/j.jfluidstructs.2016.12.009

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free