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A block‐implicit numerical procedure for simulation of buoyant swirling flows in a model furnace
Author(s) -
de Lemos Marcelo J. S.
Publication year - 2003
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.610
Subject(s) - discretization , laminar flow , mathematics , smoothing , mechanics , reynolds number , computation , flow (mathematics) , computational fluid dynamics , scalar (mathematics) , compressibility , incompressible flow , classical mechanics , physics , mathematical analysis , turbulence , geometry , algorithm , statistics
This work reports numerical results for the case of incompressible laminar heated flow with a swirl in a vertical cylindrical chamber. Computations are obtained with a point‐wise block‐implicit scheme. Flow governing equations are written in terms of the so‐called primitive variables and are recast into a general form. The discretized momentum equations are applied to each cell face and then, together with the mass‐continuity, tangential velocity and energy equations, are solved directly in each computational node. The effects of Rayleigh, Reynolds and Swirl numbers on the temperature field are discussed. Flow pattern and scalar residual history are reported. Further, it is expected that more advanced parallel computer architectures can benefit from the error smoothing operator here described. Copyright © 2003 John Wiley & Sons, Ltd.