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Axisymmetric computational fluid dynamics analysis of a film/dump-cooled rocket nozzle plumePrediction of convective base heating rates for a new launch vehicle presents significant challenges to analysts concerned with base environments. The present effort seeks to augment classical base heating scaling techniques via a detailed investigation of the exhaust plume shear layer of a single H2/O2 Space Transportation Main Engine (STME). Use of fuel-rich turbine exhaust to cool the STME nozzle presented concerns regarding potential recirculation of these gases to the base region with attendant increase in the base heating rate. A pressure-based full Navier-Stokes computational fluid dynamics (CFD) code with finite rate chemistry is used to predict plumes for vehicle altitudes of 10 kft and 50 kft. Levels of combustible species within the plume shear layers are calculated in order to assess assumptions made in the base heating analysis.
Document ID
19930066125
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tucker, P. K.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Warsi, S. A.
(Sverdrup Technology, Inc. Huntsville, AL, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 93-2349
Meeting Information
Meeting: AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit
Location: Monterey, CA
Country: United States
Start Date: June 28, 1993
End Date: June 30, 1993
Sponsors: ASME, ASEE, AIAA, SAE
Accession Number
93A50122
Distribution Limits
Public
Copyright
Other

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