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Analysis of pressure oscillation in ramjets; review of research: 1983-1988

Culick, F. E. C. (1989) Analysis of pressure oscillation in ramjets; review of research: 1983-1988. , Pasadena, CA. (Unpublished)

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This paper is a summary of work carried out during the past five years as part of an ONR/NAVAIR Research Initiative. The effort has been devoted to developments and applications of an approximate analysis intended to provide understanding of observed behavior and guidelines for design and development. Although most of the work has been carried out for longitudinal modes, quite extensive results have been obtained for transverse modes in a circular chamber, for both second and third order nonlinear gasdynamics. Especially important are the useful conclusions based on the simplified two-mode approximation. Preliminary results obtained for the influences of stochastic sources suggest that some of the observed behavior of the amplitudes of oscillations may be attributed to random inputs, such as flow separation and turbulence. Some important aspects of the problem of existence and stability of limit cycles in linearly stable systems ("triggering") remain unclear.

Item Type:Report or Paper (Discussion Paper)
Additional Information:This work was supported partly by the California Institute of Technology and by the Office of Naval Research, under Contract N00014-84-K-0434. Approved for public release; distribution is unlimited
Group:Guggenheim Jet Propulsion Center, GALCIT
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-84-K-0434
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Guggenheim Jet Propulsion Center UNSPECIFIED
Record Number:CaltechAUTHORS:20110207-095215895
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22041
Deposited By: Ruth Sustaita
Deposited On:08 Feb 2011 16:25
Last Modified:10 Mar 2023 00:03

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