Mean Flow and Noise Prediction for a Separate Flow Jet with Chevron Mixers - Couverture souple

Koch, Danielle L

 
9781289265106: Mean Flow and Noise Prediction for a Separate Flow Jet with Chevron Mixers
Couverture souple
ISBN 10 : 1289265100 ISBN 13 : 9781289265106
Editeur : Bibliogov, 2013

Synopsis

Experimental and numerical results are presented here for a separate flow nozzle employing chevrons arranged in an alternating pattern on the core nozzle. Comparisons of these results demonstrate that the combination of the WIND/MGBK suite of codes can predict the noise reduction trends measured between separate flow jets with and without chevrons on the core nozzle. Mean flow predictions were validated against Particle Image Velocimetry (PIV), pressure, and temperature data, and noise predictions were validated against acoustic measurements recorded in the NASA Glenn Aeroacoustic Propulsion Lab. Comparisons are also made to results from the CRAFT code. The work presented here is part of an on-going assessment of the WIND/MGBK suite for use in designing the next generation of quiet nozzles for turbofan engines.

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Éditeur
Bibliogov
Date d'édition
2013
Langue
anglais
ISBN 10 
1289265100
ISBN 13 
9781289265106
Reliure
Broché
Nombre de pages
22
Coordonnées du fabricant
non disponible
Personne responsable
non disponible