Investigation of the flow establishment of pre-combustion shock trains in a shock tunnel

Ridings, Andrew N. and Smart, Michael K. (2015). Investigation of the flow establishment of pre-combustion shock trains in a shock tunnel. In: 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference. International Space Planes and Hypersonic Systems and Technologies Conference, Glasgow, Scotland, (). 6-9 July 2015. doi:10.2514/6.2015-3505


Author Ridings, Andrew N.
Smart, Michael K.
Title of paper Investigation of the flow establishment of pre-combustion shock trains in a shock tunnel
Conference name International Space Planes and Hypersonic Systems and Technologies Conference
Conference location Glasgow, Scotland
Conference dates 6-9 July 2015
Convener AIAA
Proceedings title 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Journal name 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
Series 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
Place of Publication Reston, VA, United States
Publisher American Institute of Aeronautics and Astronautics
Publication Year 2015
Sub-type Fully published paper
DOI 10.2514/6.2015-3505
Open Access Status Not Open Access
ISBN 9781624103209
Total pages 23
Language eng
Formatted Abstract/Summary
This work is a fundamental investigation of the behavior of pre-combustion shock trains in the T4 Stalker Tube at the upper end of the dual-mode regime. Experiments were conducted at a condition which represents flight at Mach 8. The test model was a simple axi-symmetric duct, which comprised a short diffuser, an isolator (L/D = 4.1), fuel injectors and a constant area combustor. Gaseous hydrogen was used as the fuel and was via port-hole injection. From wall pressure measurements, it has been demonstrated that a stable pre-combustion shock train can form over a range of equivalence ratios within the short test time of the T4 Stalker Tube. From the transient data, the isolator establishment time (test) and pre-combustion shock train length (S0) were determined. Spatial distributions of the time-averaged measurements show the pressure profile throughout the duct and clearly show the position of the shock train within the isolator.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Mechanical & Mining Engineering Publications
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