The University of Southampton
University of Southampton Institutional Repository

Investigation of rotor wake turbulence through cyclostationary spectral analysis

Investigation of rotor wake turbulence through cyclostationary spectral analysis
Investigation of rotor wake turbulence through cyclostationary spectral analysis
The present paper introduces cyclostationary spectral analysis as a new approach to analyze the turbulence velocity measurements generated by a rotor. To apply this technique, a random signal should have periodic statistical characteristics and should be suitable for many rotating mechanical system as shown in recent studies. However, this method has never been applied on rotor velocity measurements. Via a Wigner–Ville representation, the instantaneous power spectra of the turbulence in the wakes and in between the wakes will be depicted and analyzed. The usefulness of the technique applied to rotor-generated turbulence is that it can separate the spectrum of the turbulence in between the wakes from that in the wake with a much greater frequency resolution than conventional spectral analysis.
0001-1452
2022-2030
Jurdic, Vincent
482e51b2-d6f0-4720-86ce-444fc4415085
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Antoni, Jerome
22461923-a884-44ef-a461-65a93f2b911d
Jurdic, Vincent
482e51b2-d6f0-4720-86ce-444fc4415085
Joseph, Phillip
9c30491e-8464-4c9a-8723-2abc62bdf75d
Antoni, Jerome
22461923-a884-44ef-a461-65a93f2b911d

Jurdic, Vincent, Joseph, Phillip and Antoni, Jerome (2009) Investigation of rotor wake turbulence through cyclostationary spectral analysis. AIAA Journal, 47 (9), 2022-2030. (doi:10.2514/1.36728).

Record type: Article

Abstract

The present paper introduces cyclostationary spectral analysis as a new approach to analyze the turbulence velocity measurements generated by a rotor. To apply this technique, a random signal should have periodic statistical characteristics and should be suitable for many rotating mechanical system as shown in recent studies. However, this method has never been applied on rotor velocity measurements. Via a Wigner–Ville representation, the instantaneous power spectra of the turbulence in the wakes and in between the wakes will be depicted and analyzed. The usefulness of the technique applied to rotor-generated turbulence is that it can separate the spectrum of the turbulence in between the wakes from that in the wake with a much greater frequency resolution than conventional spectral analysis.

This record has no associated files available for download.

More information

Published date: September 2009
Organisations: Fluid Dynamics & Acoustics Group

Identifiers

Local EPrints ID: 71543
URI: http://eprints.soton.ac.uk/id/eprint/71543
ISSN: 0001-1452
PURE UUID: a9ce9ee4-2fc5-48ad-a252-8396f2b37719

Catalogue record

Date deposited: 11 Feb 2010
Last modified: 13 Mar 2024 20:30

Export record

Altmetrics

Contributors

Author: Vincent Jurdic
Author: Phillip Joseph
Author: Jerome Antoni

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 http://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.

×