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Prediction of the ullage gas thermal stratification in a NASP vehicle propellant tank experimental simulation using FLOW-3DAs part of the National Aero-Space Plane (NASP) project, the multi-dimensional effects of gravitational force, initial tank pressure, initial ullage temperature, and heat transfer rate on the 2-D temperature profiles were studied. FLOW-3D, a commercial finite difference fluid flow model, was used for the evaluation. These effects were examined on the basis of previous liquid hydrogen experimental data with gaseous hydrogen pressurant. FLOW-3D results were compared against an existing 1-D model. In addition, the effects of mesh size and convergence criteria on the analytical results were investigated. Suggestions for future modifications and uses of FLOW-3D for modeling of a NASP tank are also presented.
Document ID
Document Type
Technical Memorandum (TM)
Hardy, Terry L.
(NASA Lewis Research Center Cleveland, OH, United States)
Tomsik, Thomas M.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1990
Subject Category
Propellants And Fuels
Report/Patent Number
NAS 1.15:103217
Accession Number
Funding Number(s)
PROJECT: RTOP 763-01-21
Distribution Limits
Work of the US Gov. Public Use Permitted.
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