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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.240
pages 402-411

EFFECT OF GASEOUS FUEL MIXING ON BORON COMBUSTION IN DUCTED ROCKET WITH SIDE DUMP

Klaus C. Schadow
Research and Technology Division, Naval Air Warfare Center, China Lake, CA 93555
K. J. Wilson
Research Department, Naval Air Warfare Center - Weapons Division, China Lake, CA 93555-6001, USA
E.J. Gutmark
Engineering Research Center, University of Cincinnati, Cincinnati, OH 45221, USA
R. A. Smith
Research Department, Naval Air Warfare Center - Weapons Division, China Lake, CA 93555-6001, USA

ABSTRACT

Fuel-rich, boron particle-laden plume combustion in a subsonic airstream was studied in a gas-generator ramjet with side inlets. Plume combustion temperatures and relative combustion efficiency were determined for gaseous fuels with and without particles. Highest boron combustion efficiency was obtained for operational conditions which provided highest gaseous-fuel plume combustion temperatures. The plume temperature depended on gas-generator temperature, ramjet combustor pressure, and gas-generator nozzle type. Highest plume temperatures were achieved with a noncircular nozzle configuration which enhances fine-scale (molecular) mixing.


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