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Oscillations in Flowing and Heated Subcritical Hydrogen

  • J. D. Rogers
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 13)

Abstract

This experiment extends the range of earlier work[1–3] to pressures as low as 30 psia. Earlier work was for pressures above 110 psia. In the previous experiments, the oscillations were characterized as Helmholtz modes and the harmonics of a resonant pipe open at both ends. In this work, the downstream plenum which was basic to the Heimholtz mode has been eliminated, Nevertheless, a threshold phenomenon quite similar to that previously developed [2,3] was found to exist, and a meaningful interpretation in terms of Zuber’s [4] recent density variation theory has been developed, The work of Zuber is based upon the combustion instability theory of Crocco and Cheng [5] and the more recent developments of Wallis and Heasley [6] and Bouré [7]. The derivation of Zuber closely parallels the definitive work of Crocco and Cheng and is extended to consider the supercritical state, The mechanism of oscillation is in terms of density variation, with “lags” in time and space related to the transition from a heavy fluid to a light fluid and is not dissimilar to the treatment of Bouré, Zuber also presents threshold criteria for two limiting conditions, small and large subcooling. The former is used in this work.

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References

  1. 1.
    R. S. Thurston, in: Advances in Cryogenic Engineering, Vol. 10, Plenum Press, New York (1965), p. 305,CrossRefGoogle Scholar
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    R. S. Thurston, Ph.D. Dissertation, University of New Mexico, Albuquerque, N.M. (1966).Google Scholar
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    R. S. Thurston, J. D. Rogers, and V. J. Skoglund, in: Advances in Cryogenic Engineering, Vol. 12, Plenum Press, New York (1967), p. 438.Google Scholar
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    N. Zuber, Final Report NAS8–11422 (May 25, 1966).Google Scholar
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    L. Crocco and S. I. Cheng, Theory of Combustion Instability in Liquid Propellant Rocket Motors, Pergamon Press, London (1956).Google Scholar
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    G. B. Wallis and J. H. Heasley, J. of Heat Transfer, ASMS Trans., Series C, 83:363 (1961).CrossRefGoogle Scholar
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    J. Bouré, Report TT No. 55, Centre d’Etudes Nucleaires de Grenoble, Prance (1965); Report CEA-R 3049, Parts 1 and II, Centre d’Etudes Nucleaires de Grenoble, France (1966).Google Scholar
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    H. M. Roder, L. A. Weber, and R. D. Goodwin, NBS Monograph No. 94 (1965).Google Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • J. D. Rogers
    • 1
  1. 1.Los Alamos Scientific LaboratoryUniversity of CaliforniaLos AlamosUSA

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