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Fully-coupled analysis of jet mixing problems. Three-dimensional PNS model, SCIP3DNumerical procedures formulated for the analysis of 3D jet mixing problems, as incorporated in the computer model, SCIP3D, are described. The overall methodology closely parallels that developed in the earlier 2D axisymmetric jet mixing model, SCIPVIS. SCIP3D integrates the 3D parabolized Navier-Stokes (PNS) jet mixing equations, cast in mapped cartesian or cylindrical coordinates, employing the explicit MacCormack Algorithm. A pressure split variant of this algorithm is employed in subsonic regions with a sublayer approximation utilized for treating the streamwise pressure component. SCIP3D contains both the ks and kW turbulence models, and employs a two component mixture approach to treat jet exhausts of arbitrary composition. Specialized grid procedures are used to adjust the grid growth in accordance with the growth of the jet, including a hybrid cartesian/cylindrical grid procedure for rectangular jets which moves the hybrid coordinate origin towards the flow origin as the jet transitions from a rectangular to circular shape. Numerous calculations are presented for rectangular mixing problems, as well as for a variety of basic unit problems exhibiting overall capabilities of SCIP3D.
Document ID
19880010872
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Wolf, D. E. (Science Applications International Corp. Princeton, NJ, United States)
Sinha, N. (Science Applications International Corp. Princeton, NJ, United States)
Dash, S. M. (Science Applications International Corp. Princeton, NJ, United States)
Date Acquired
September 5, 2013
Publication Date
April 1, 1988
Publication Information
Publisher: NASA
Subject Category
Aerodynamics
Report/Patent Number
SAIC/PR-TR-67
NAS 1.26:4139
NASA-CR-4139
Accession Number
88N20256
Funding Number(s)
CONTRACT_GRANT: NAS1-16535
PROJECT: RTOP 505-62-71-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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