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Adaptation of multidimensional group particle tracking and particle wall-boundary condition model to the FDNS codeA particulate two-phase flow CFD model was developed based on the FDNS code which is a pressure based predictor plus multi-corrector Navier-Stokes flow solver. Turbulence models with compressibility correction and the wall function models were employed as submodels. A finite-rate chemistry model was used for reacting flow simulation. For particulate two-phase flow simulations, a Eulerian-Lagrangian solution method using an efficient implicit particle trajectory integration scheme was developed in this study. Effects of particle-gas reaction and particle size change to agglomeration or fragmentation were not considered in this investigation. At the onset of the present study, a two-dimensional version of FDNS which had been modified to treat Lagrangian tracking of particles (FDNS-2DEL) had already been written and was operational. The FDNS-2DEL code was too slow for practical use, mainly because it had not been written in a form amenable to vectorization on the Cray, nor was the full three-dimensional form of FDNS utilized. The specific objective of this study was to reorder to calculations into long single arrays for automatic vectorization on the Cray and to implement the full three-dimensional version of FDNS to produce the FDNS-3DEL code. Since the FDNS-2DEL code was slow, a very limited number of test cases had been run with it. This study was also intended to increase the number of cases simulated to verify and improve, as necessary, the particle tracking methodology coded in FDNS.
Document ID
19930003501
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Chen, Y. S.
(SECA, Inc. Huntsville, AL, United States)
Farmer, R. C.
(SECA, Inc. Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1992
Publication Information
Publication: Alabama Univ., Computational Fluid Dynamics Combustion Analysis Evaluation
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
SECA-TR-92-06
Accession Number
93N12689
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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