Thrust nozzle design study for a quasi-axisymmetric scramjet-powered vehicle

Tanimizu, K, Mee, DJ, Stalker, RJ and Jacobs, PA (2011) Thrust nozzle design study for a quasi-axisymmetric scramjet-powered vehicle. Journal of Propulsion and Power, 27 1: 40-49. doi:10.2514/1.48586


Author Tanimizu, K
Mee, DJ
Stalker, RJ
Jacobs, PA
Title Thrust nozzle design study for a quasi-axisymmetric scramjet-powered vehicle
Journal name Journal of Propulsion and Power   Check publisher's open access policy
ISSN 0748-4658
1533-3876
Publication date 2011-01
Sub-type Article (original research)
DOI 10.2514/1.48586
Volume 27
Issue 1
Start page 40
End page 49
Total pages 10
Place of publication Reston, VA, U.S.A.
Publisher American Institute of Aeronautics and Astronautics
Collection year 2012
Language eng
Abstract The design of a nozzle of an unfueled quasi-axisymmetric scramjet model is optimized for minimum drag for a Mach 8 flight condition. The approach to the nozzle design is to develop a simple force-prediction methodology in an optimization study. The study is completed for an unfueled configuration, but the approach could be used for fueled configuration by including appropriate combustion modeling. The effects of the nozzle design on the overall vehicle performance are included. The overall drag of the baseline model for the optimization study was measured in the T4 shock tunnel for Mach numbers ranging from 5.7 to 10.3, confirming the suitability of the force-prediction methodology. The results of the nozzle-optimization study show that performance is limited by the nozzle area ratio that can be incorporated into the vehicle without leading to too large of a base diameter of the vehicle and increasing the external drag of the vehicle. The drag of vehicle designs at different flight Mach numbers is investigated in a parametric study for Mach numbers from 6 to 10. The results confirm that longer nozzles are better at higher Mach numbers. Copyright © 2010 by the American Institute of Aeronautics and Astronautics, Inc.
Keyword Boundary-layer
Impulse facilities
Fuel-injection
Shock tunnel
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published January-February 2011.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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Created: Sun, 27 Feb 2011, 00:05:18 EST