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ASRM radiation and flowfield prediction statusExisting and proposed methods for the prediction of plume radiation are discussed in terms of their application to the NASA Advanced Solid Rocket Motor (ASRM) and Space Shuttle Main Engine (SSME) projects. Extrapolations of the Solid Rocket Motor (SRM) are discussed with respect to preliminary predictions of the primary and secondary radiation environments. The methodology for radiation and initial plume property predictions are set forth, including a new code for scattering media and independent secondary source models based on flight data. The Monte Carlo code employs a reverse-evaluation approach which traces rays back to their point of absorption in the plume. The SRM sea-level plume model is modified to account for the increased radiation in the ASRM plume due to the ASRM's propellant chemistry. The ASRM cycle-1 environment predictions are shown to identify a potential reason for the shutdown spike identified with pre-SRM staging.
Document ID
19910056522
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Reardon, J. E.
(Remtech, Inc. Huntsville, AL, United States)
Everson, J.
(Remtech, Inc Huntsville, AL, United States)
Smith, S. D.
(SECA, Inc. Huntsville, AL, United States)
Sulyma, P. R.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1991
Subject Category
Spacecraft Propulsion And Power
Accession Number
91A41145
Funding Number(s)
CONTRACT_GRANT: NAS8-37891
Distribution Limits
Public
Copyright
Other

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