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Noncircular orifice holes and advanced fabrication techniques for liquid rocket injectors. Phase 3: Analytical and cold-flow experimental evaluation of rectangular concentric tube injector elements for gas/liquid application. Phase 4: Analytical and experimental evaluation of noncircular injector elements for gas/liquid and liquid/liquid applicationResults are presented of a cold-flow and hot-fire experimental study of the mixing and atomization characteristics of injector elements incorporating noncircular orifices. Both liquid/liquid and gas/liquid element types are discussed. Unlike doublet and triplet elements (circular orifices only) were investigated for the liquid/liquid case while concentric tube elements were investigated for the gas/liquid case. It is concluded that noncircular shape can be employed to significant advantage in injector design for liquid rocket engines.
Document ID
19740018133
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Mchale, R. M. (Rockwell International Corp. Canoga Park, CA, United States)
Date Acquired
September 3, 2013
Publication Date
May 1, 1974
Subject Category
Propulsion Systems
Report/Patent Number
R-9270
NASA-CR-134286
Accession Number
74N26246
Funding Number(s)
CONTRACT_GRANT: NAS9-9528
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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