Flow tagging velocimetry in a superorbital expansion tube

Littleton, BN, Bishop, AI, McIntyre, TJ, Barker, PF and Rubinsztein-Dunlop, H (2000) Flow tagging velocimetry in a superorbital expansion tube. Shock Waves, 10 3: 225-228. doi:10.1007/s001930050010


Author Littleton, BN
Bishop, AI
McIntyre, TJ
Barker, PF
Rubinsztein-Dunlop, H
Title Flow tagging velocimetry in a superorbital expansion tube
Journal name Shock Waves   Check publisher's open access policy
ISSN 0938-1287
Publication date 2000-01-01
Sub-type Article (original research)
DOI 10.1007/s001930050010
Volume 10
Issue 3
Start page 225
End page 228
Total pages 4
Place of publication Germany
Publisher Springer-Verlag
Language eng
Subject C1
249999 Physical Sciences not elsewhere classified
780102 Physical sciences
Abstract A non-intrusive laser-based method for direct velocity measurements has been demonstrated in a superorbital flow facility. The method is based upon laser enhanced ionisation velocimetry in which a tagged region is created by two step excitation of sodium and subsequent collisional ionisation. The achieved depletion of neutral atoms is then interrogated by planar laser induced fluorescence. The velocities were measured in the freestream at a superorbital condition yielding 9.20 +/- 0.11 km/s. These results compare favourably with the measured shock speeds in the facility.
Keyword Mechanics
Velocimetry
Expansion Tube
Flow Tagging
Laser Enhanced Ionisation
Sodium
Fluorescence
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
 
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Created: Tue, 10 Jun 2008, 23:17:32 EST