The University of Southampton
University of Southampton Institutional Repository

The effect of leading edge serrations on dynamic stall

The effect of leading edge serrations on dynamic stall
The effect of leading edge serrations on dynamic stall
An investigation into the effects of dynamic stall was carried out on six aerofoil profiles with sinusoidal leading edges having two amplitudes and three different wavelengths. The study also investigated the effect of wavelength on the static performance of the aerofoil as well as the static hysteresis performance of these profiles. Compared to a baseline model, it was found that a reduction in wavelength increased the maximum lift and the static stall angle. The maximum baseline lift was not reached in any of the cases. The static hysteresis performance of the sinusoidal leading edge profiles was found to be significantly better than the baseline with virtually no static hysteresis recorded. The dynamic study revealed that the sinusoidal profiles improved the performance of the aerofoil by increasing the maximum percentage of lift generated as well as by reducing the size of the hysteresis loop.
Borg, Jonathan
7bb1106a-4351-4ef8-a5ae-37a7688cffcc
Borg, Jonathan
7bb1106a-4351-4ef8-a5ae-37a7688cffcc
Ganapathisubramani, Bharathram
5e69099f-2f39-4fdd-8a85-3ac906827052

Borg, Jonathan (2012) The effect of leading edge serrations on dynamic stall. University of Southampton, Faculty of Engineering and the Environment, Masters Thesis, 68pp.

Record type: Thesis (Masters)

Abstract

An investigation into the effects of dynamic stall was carried out on six aerofoil profiles with sinusoidal leading edges having two amplitudes and three different wavelengths. The study also investigated the effect of wavelength on the static performance of the aerofoil as well as the static hysteresis performance of these profiles. Compared to a baseline model, it was found that a reduction in wavelength increased the maximum lift and the static stall angle. The maximum baseline lift was not reached in any of the cases. The static hysteresis performance of the sinusoidal leading edge profiles was found to be significantly better than the baseline with virtually no static hysteresis recorded. The dynamic study revealed that the sinusoidal profiles improved the performance of the aerofoil by increasing the maximum percentage of lift generated as well as by reducing the size of the hysteresis loop.

PDF
write_up.pdf - Other
Download (3MB)

More information

Published date: 2012
Organisations: University of Southampton, Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 343276
URI: https://eprints.soton.ac.uk/id/eprint/343276
PURE UUID: 02d0bf1c-5643-49ed-b3d4-58cdc4c1ab34
ORCID for Bharathram Ganapathisubramani: ORCID iD orcid.org/0000-0001-9817-0486

Catalogue record

Date deposited: 06 Dec 2012 10:13
Last modified: 06 Jun 2018 12:33

Export record

Contributors

Author: Jonathan Borg

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×