ScramSpace hypersonic aerodynamic drag coefficient (CD) determined by free-flight experiments at TUSQ wind-tunnel

Ennis, Rodney James (2013) ScramSpace hypersonic aerodynamic drag coefficient (CD) determined by free-flight experiments at TUSQ wind-tunnel. [USQ Project]

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Abstract

This research project sought to extend experience in the experimental determination of aerodynamic forces through free-flight 1:9 model experiments of an integrated air-breathing hypersonic vehicle ScramSpace1, at the University of Southern Queensland hypersonic wind tunnel. Aerodynamic forces experienced by the model in Mach 6 flow of air of approximately 120 millisecond duration were measured directly using an on-board orientation sensor and indirectly through high speed video image analysis.

Force components and hence aerodynamic coefficients are determined both from the directly measured acceleration and rotation of the model in six degrees of freedom, broadcast in real-time via an on-board Bluetooth modem, and indirectly via analysis of standard Z-configuration Schlieren image capture at 2000 frames per second.

The project demonstrated the viability of free-flight experiments at TUSQ with real vehicle geometries and provides future researchers’ confidence on which to expand analysis of the current data set or develop their own free-flight experiments. The complexities of free-flight experiments with real vehicle geometries and subsequent analysis is discussed in light of the reasonable correlation between the ScramSpace team CFD predicted range of to 1 from to degrees angle of attack with the experimentally determined mean drag coefficient, .


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Item Type: USQ Project
Item Status: Live Archive
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Supervisors: Buttsworth, David
Date Deposited: 03 Mar 2014 05:52
Last Modified: 24 Jun 2014 01:42
Uncontrolled Keywords: ScramSpace; hypersonic aerodynamic drag coefficient; free-flight; TUSQ
Fields of Research : 09 Engineering > 0901 Aerospace Engineering > 090106 Flight Dynamics
09 Engineering > 0901 Aerospace Engineering > 090101 Aerodynamics (excl. Hypersonic Aerodynamics)
URI: http://eprints.usq.edu.au/id/eprint/24626

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