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A combustion driven shock tunnel to complement the free piston shock tunnel T5 at GALCITA combustion driven shock tunnel was designed and built at GALCIT to supply the hypersonic facility T5 with 'hot' hydrogen for mixing and combustion experiments. This system was chosen over other options for better flexibility and for safety reasons. The shock tunnel is described and the overall efficiency of the system is discussed. The biggest challenge in the design was to synchronize the combustion driven shock tunnel with T5. To do so, the main diaphragm of the combustion driven shock tunnel is locally melted by an electrical discharge. This local melting is rapidly followed by the complete collapse of the diaphragm in a very repeatable way. A first set of experiments on supersonic hydrogen transverse jets over a flat plate have just been completed with the system and some of the preliminary results are presented.
Document ID
19920074170
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Belanger, Jacques
(NASA Langley Research Center Hampton, VA, United States)
Hornung, Hans G.
(California Institute of Technology, Pasadena, United States)
Date Acquired
August 15, 2013
Publication Date
July 1, 1992
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
AIAA PAPER 92-3968
Accession Number
92A56794
Funding Number(s)
CONTRACT_GRANT: NAG1-1209
Distribution Limits
Public
Copyright
Other

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