Abstract
A device has been developed to detect the arrival of the driver gas in a shock tunnel. The detector is small enough to be used in conjunction with other experiments. It works by choking a duct when the specific heat ratio is increased past a critical value. Times are given for the onset of a 7.5% contamination level in flows with freestream enthalpies ranging from 3–9 MJ/kg. These results are compared with and are shown to be in agreement with measurements made with a mass spectrometer. Results displaying the rate at which the test gas is contaminated are also given.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Hornung H, Sturtevant B, Belanger J, Sanderson S, Brouillette M, Jenkins M, (1991) Performance data of the new free-piston shock tunnel T5 at GALCIT. In: Takayama K (ed) Shock Waves, Proc. 18th ISSW, Sendai, pp. 603–610
Lordi JA, Mates RE, Moselle JR (1966) Computer program for numerical solution of non-equilibrium expansion of reacting gas mixture NASA CR-472
McIntosh MK (1968) Computer program for the numerical calculation of frozen and equilibrium conditions in shock tunnels. Dept. of Physics, ANU
Paull A, and King MD (1995) A driver gas detection device for shock tunnels, Shock Waves J. V4, No. 5 pp 289–291
Skinner KA (1994) Mass spectrometry in shock tunnel experiments of hypersonic combustion. Ph.D. thesis Univ. of Qld. Australia
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Paull, A. A simple shock tunnel driver gas detector. Shock Waves 6, 309–312 (1996). https://doi.org/10.1007/BF02535744
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02535744