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Boron carbide combustion in solid‐fuel ramjets using bypass air. Part II: Theoretical analysis
Author(s) -
Natan Benveniste,
Netzer David W.
Publication year - 1997
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19970220104
Subject(s) - combustion , combustor , boron carbide , momentum (technical analysis) , ramjet , fuel efficiency , mechanics , extinguishment , materials science , flow (mathematics) , nuclear engineering , aerospace engineering , chemistry , engineering , physics , metallurgy , organic chemistry , finance , political science , economics , law
The effect of bypass air momentum on the combustion efficiency of a boron‐carbide fueled solid‐fuel ramjet motor has been investigated theoretically. A 3‐D model of the flow in the aft‐burner has been developed and solved numerically. The theoretical results indicated that combustion efficiency can be increased by employing bypass air with low dump momentum, in agreement with experimental results. High bypass air dump momentum was shown to enhance extinguishment of particle combustion through increased collisions with the motor walls.