| Titre : | Unsteady vortex flows produced by trailing edge articulation (2009) |
| Auteurs : | Huyer, Stephen A., Auteur ; David Beal, Auteur ; Daniel Macumber, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Transactions of the ASME . Journal of fluids engineering (Vol. 130 N° 3, Mars 2008) |
| Article en page(s) : | 7 p. |
| Note générale : | Fluids engineering |
| Langues : | Anglais |
| Tags : | Flow (dynamics) ; wakes ; vortices ; light trucks ; measurement ; vortex flow ; laser doppler anemometry ; stators ; particulate matter ; blades ; noise (sound) ; drag (fluid dynamics) |
| Résumé : |
The unsteady vortex flows produced by biologically inspired tail articulation are investigated. The application is to provide active means of reducing tonal noise due to upstream wake interaction with downstream propellers on underwater vehicles. By reducing the wake velocity defect, the periodic unsteady propeller blade pressure fluctuations that are the source of the noise should be reduced. Accordingly, experiments to measure the flows produced by an upstream stator fitted with a movable trailing edge were carried out in a water tunnel for Reynolds numbers in the range 75,000 |
| En ligne : | http://fluidsengineering.asmedigitalcollection.asme.org/Issue.aspx?issueID=27301&direction=P |
