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Published September 2004 | Published
Journal Article Open

Impulse Correlation for Partially Filled Detonation Tubes


The effect of nozzles on the impulse obtained from a detonation tube of circular cross section has been the focus of many experimental and numerical studies. In these cases, the simplified detonation tube is closed at one end (forming the thrust surface) and open at the other end, enabling the attachment of an extension. A flowfield analysis of a detonation tube with an extension requires considering unsteady wave interactions making analytical and accurate numerical predictions difficult (especially in complicated extension geometries). To predict the impulse obtained from a detonation tube with an extension (considered a partially filled detonation tube), we utilize data from other researchers to generate a partial-fill correlation.

Additional Information

© 2004 by California Institute of Technology. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Received 8 September 2003; revision received 5 February 2004; accepted for publication 15 March 2004. This work was supported by the Office of Naval Research Multidisciplinary University Research Initiative "Multidisciplinary Study of Pulse Detonation Engine" (Grant 00014-99-1-0744, Subcontract 1686-ONR-0744) and General Electric Contract GE-PO A02 81655 under DABT-63-0-0001.

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