A driver gas detection device for shock tunnels |
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| Authors: | A. Paull M. D. King |
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| Affiliation: | (1) Mechanical Engineering Department, University of Queensland, 4072 Brisbane, Australia |
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| 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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| Keywords: | Shock tunnels Driver gas Contamination Test time |
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