High speed imaging of flow establishment and duration in impulse facilities

McIntyre, Timothy J., Mallon, Michael M. and Eichmann, Troy N. (2008). High speed imaging of flow establishment and duration in impulse facilities. In: 26th Aiaa Aerodynamic Measurement Technology and Ground Testing Conference 2008. 26th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, Seattle. USA, (). 23-26 June 2008.

Author McIntyre, Timothy J.
Mallon, Michael M.
Eichmann, Troy N.
Title of paper High speed imaging of flow establishment and duration in impulse facilities
Conference name 26th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Conference location Seattle. USA
Conference dates 23-26 June 2008
Proceedings title 26th Aiaa Aerodynamic Measurement Technology and Ground Testing Conference 2008
Journal name 26th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Place of Publication United States
Publisher Curran Associates
Publication Year 2008
Sub-type Fully published paper
ISBN 1605603686
9781605603681
Total pages 1
Language eng
Abstract/Summary The flow establishment processes and the duration of the test time in low and high enthalpy impulse facilities have been investigated by using high speed flow imaging and time-resolved surface sensors. For the low enthalpy facility, the high speed imaging gave sufficient information to fully characterise the steady flow time including a measurement of the flow Mach number. Results for tests on a higher speed super-orbital expansion tube showed that imaging of the shock stand-off on a blunt body gives a good indication of the duration of the flow establishment processes. However, static pressure measurements provide a better indication of the end of the test time defined by the arrival of the leading edge of the unsteady expansion generated by diaphragm rupture.
Subjects 0901 Aerospace Engineering
Keyword Impulse facilities
High speed flow imaging
Static pressure measurements
Diaphragm rupture.
Q-Index Code EX
Q-Index Status Provisional Code

 
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Created: Wed, 17 Feb 2010, 22:20:16 EST by Michael Affleck on behalf of Faculty of Science