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On flow duration in low-pressure shock tubes

Roshko, Anatol (1960) On flow duration in low-pressure shock tubes. Physics of Fluids, 3 (6). pp. 835-842. ISSN 0031-9171.

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The severe decrease of flow duration in shock tubes operating at low pressures, previously reported by Duff, is confirmed by experiment and by an analysis of the effects of the laminar-boundary layer behind the shock wave. The latter leads to a shock tube similarity length parameter X, which depends on the tube pressure, diameter and shock Mach number, and to a flow duration parameter T. The theoretical relation T = T(X) is determined and compared with experimental results. From the theoretical result Tmax = 1, the maximum possible flow duration τm in a shock tube is determined; it increases linearly with the initial pressure and the square of the tube diameter and decreases strongly with shock Mach number.

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Additional Information:©1960 The American Institute of Physics. Received June 9, 1960. This work was carried out under the sponsorship and with the financial assistance of the Office, Chief of Ordnance, and the Office of Ordnance Research, U. S. Army.
Issue or Number:6
Record Number:CaltechAUTHORS:ROSpof60
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4401
Deposited By: Tony Diaz
Deposited On:22 Aug 2006
Last Modified:02 Oct 2019 23:12

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