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Experimental investigation of shock waves in liquid helium I and II

Cummings, John C. (1976) Experimental investigation of shock waves in liquid helium I and II. Journal of Fluid Mechanics, 75 (2). pp. 373-383. ISSN 0022-1120. doi:10.1017/S002211207600027X.

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The flow field produced by a shock wave reflecting from a helium gas-liquid interface was investigated using a cryogenic shock tube. Incident and reflected shock waves were observed in the gas; transmitted first- and second-sound shocks were observed in the liquid. Wave diagrams are constructed to compare the data with theoretical wave trajectories. Qualitative agreement between data and theory is shown. Quantitative differences between data and theory indicate a need for further analysis of both the gas-liquid interface and the propagation of nonlinear waves in liquid helium. This work was a first step in the experimental investigation of a complex non-equilibrium state. The results demonstrate clearly the usefulness of the cryogenic shock tube as a research tool. The well-controlled jump in temperature and pressure across the incident shock wave provides unique initial conditions for the study of dynamic phenomena in superfluid helium.

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Additional Information:© 1976 Cambridge University Press. Received 19 August 1975. Published online: 29 March 2006. This work was made possible by the U.S. Air Force Office of Scientific Research (Grant AFOSR 71-2092), and is based on Part II of a thesis submitted in partial fulfilment of the requirements for a Ph.D. degree at the California Institute of Technology. The author wishes to acknowledge the many contributions to this work that were made by Prof. Hans W. Liepmann.
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Air Force Office of Scientific Research (AFOSR)AFOSR 71-2092
Issue or Number:2
Record Number:CaltechAUTHORS:20120730-151111651
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32801
Deposited By: Tony Diaz
Deposited On:30 Jul 2012 23:53
Last Modified:09 Nov 2021 21:30

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