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

Koch, Danielle L

ISBN 10: 1289265100 / ISBN 13: 9781289265106

Published by Bibliogov, 2013

About this Item

Print on Demand pp. 22.

Seller Inventory # 393556591

Bibliographic Details

• Title: Mean Flow and Noise Prediction for a Separate Flow Jet with Chevron Mixers
• Publisher: Bibliogov
• Publication Date: 2013
• Language: English
• ISBN 10: 1289265100
• ISBN 13: 9781289265106
• Binding: Soft cover
• Condition: New

About this title

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.