Optical study of a light diaphragm rupture process in an expansion tube

Wegener, Margaret, Sutcliffe, Mark and Morgan, Richard (2000) Optical study of a light diaphragm rupture process in an expansion tube. Shock waves, 10 3: 167-178. doi:10.1007/s001930050003

Author Wegener, Margaret
Sutcliffe, Mark
Morgan, Richard
Title Optical study of a light diaphragm rupture process in an expansion tube
Journal name Shock waves   Check publisher's open access policy
ISSN 0938-1287
Publication date 2000-07-01
Year available 2000
Sub-type Article (original research)
DOI 10.1007/s001930050003
Open Access Status
Volume 10
Issue 3
Start page 167
End page 178
Total pages 12
Place of publication Berlin, Heidelberg
Publisher Springer-Verlag
Language eng
Subject 240402 Quantum Optics and Lasers
240400 Optical Physics
780102 Physical sciences
Abstract Rupture of a light cellophane diaphragm in an expansion tube has been studied by an optical method. The influence of the light diaphragm on test flow generation has long been recognised, however the diaphragm rupture mechanism is less well known. It has been previously postulated that the diaphragm ruptures around its periphery due to the dynamic pressure loading of the shock wave, with the diaphragm material at some stage being removed from the flow to allow the shock to accelerate to the measured speeds downstream. The images obtained in this series of experiments are the first to show the mechanism of diaphragm rupture and mass removal in an expansion tube. A light diaphragm was impulsively loaded via a shock wave and a series of images was recorded holographically throughout the rupture process, showing gradual destruction of the diaphragm. Features such as the diaphragm material, the interface between gases, and a reflected shock were clearly visualised. Both qualitative and quantitative aspects of the rupture dynamics were derived from the images and compared with existing one-dimensional theory.
Keyword laser science
Diaphragm Rupture
Holographic Interferometry
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 06 Apr 2007, 02:11:58 EST by Kaye Eldridge on behalf of School of Mathematics & Physics