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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.142 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i5.40
pages 421-446

ACCOMPLISHMENTS AND CHALLENGES IN SOLID FUEL RAMJETS AND SCRAMJETS

Alon Gany
Sylvia and David IA Fine Rocket Propulsion Center and the Aerothermodynamics Lab, Faculty of Aerospace Engineering, Technion – Israel Institute of Technology, Haifa, 3200003, Israel

RÉSUMÉ

This paper summarizes the main features of solid fuel ramjets (SFRJs) and scramjets based on comprehensive theoretical and experimental studies. The main accomplishments and challenges are highlighted. Solid fuel ramjets and scramjets are the simplest airbreathing engines. They can provide propulsion solutions in the supersonic and hypersonic flight speed ranges, respectively, with substantially superior energetic performance to that of rockets. This paper presents theoretical and experimental results on the characteristics and performance of solid fuel ramjets and scramjets, emphasizing their particular potential use for increased-range gun-launched projectiles. Efficient combustion in miniature (5−10 mm internal diameter) SFRJ combustors as well as self-sustained supersonic combustion in scramjet combustors is demonstrated. One of the main conclusions is once sufficient specific thrust can be obtained, the solid fuel scramjet may be the most straight-forward hypersonic airbreathing propulsion means to be implemented.


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