Abstract
A device has been produced which can detect the contamination of the test gas by the driver gas in a reflected shock tunnel. This device monitors the static pressure in a converging duct. The duct is designed to choke at a predetermined contamination level due to the change in the specific heat ratio produced by the contaminants. Experimental results are given for a freestream enthalpy of nominally 6 MJ/kg.
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Paull, A., King, M.D. A driver gas detection device for shock tunnels. Shock Waves 4, 289–291 (1995). https://doi.org/10.1007/BF01416041
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DOI: https://doi.org/10.1007/BF01416041