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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Detonation Propagation Through Ducts in a Pulsed Detonation Engine

Detonation Propagation Through Ducts in a Pulsed Detonation Engine

Air Force Institute of Technology
Nielsen, Jeffrey M.

Paperback

Technology & EngineeringPhysics

ISBN10: 1025084861
ISBN13: 9781025084862
Publisher: Hutson Street Press
Published: May 22 2025
Pages: 90
Weight: 0.30
Height: 0.19 Width: 6.14 Depth: 9.21
Language: English

Development of a continuously operating pulsed detonation engine (PDE) without a high energy ignition system or a deflagration-to- detonation transition (DDT) device will increase engine efficiency, reduce cost, improve performance, and reduce weight. This report is a study of configurations that allow a consistent and predictable transition of a detonation from one detonation tube to second tube. The intent was, via visualization of detonation propagation through a cross-over tube, to develop a cross-over passage leading to minimization of energy losses and effective and repeatable tube-to-tube initiation. Detonation tube cross-over width, cross-over geometry and fuels were varied to determine their effect on tube-to-tube detonation initiation. The cross-over detonations studied decoupled into and out of the cross-over tube due to propagation as subcritical spherical detonations. It was shown that the mechanism of shock reflection could be used to transition the spherical detonation back to a planar detonation.

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