Accession Number:

ADA454345

Title:

Propagation of Detonation Waves in Tubes Split from a PDE Thrust Tube

Descriptive Note:

Conference paper

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Report Date:

2002-07-01

Pagination or Media Count:

13.0

Abstract:

A Pulse Detonation Engine PDE combusts a fuel air mixture through detonation. Existing designs require spark plugs in each separate thrust tube to ignite premixed reactants. A single thrust tube could require the spark plug to fire hundreds of times per second for long durations. This paper reports on the use of a continuously propagating detonation wave as both a thrust producer and a single ignition source for a multi-tube system. The goal was to minimize ignition complexity and increase reliability by limiting the number of ignition sources. The work includes a systematic investigation of single tube geometric effects on detonations. These results were subsequently used to further examine conditions for splitting detonations i.e. the division of a detonation wave into two separate detonation waves. Einally a dual thrust tube system was built and tested that successfully employed a single spark to initiate detonation in separate thrust tubes.

Subject Categories:

  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE