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The simulation of secondary flow effects in turbulent non‐circular passage flows
Author(s) -
Rapley C. W.
Publication year - 1982
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.1650020403
Subject(s) - turbulence , flow (mathematics) , mechanics , momentum (technical analysis) , secondary flow , mean flow , plane (geometry) , mathematics , turbulent diffusion , physics , statistical physics , geometry , finance , economics
A finite difference method has been developed to predict the overall features of the local mean flow in fully developed turbulent non‐circular passage flows. The main transport effects of secondary flow have been identified and simulated with diffusion transport in a simple way which eliminates solution of the cross‐plane momentum and continuity equations and produces a compact calculation method. Predictions are presented for four different passage shapes and are discussed in relation to experimental measurements and predictions from other more complex methods. Although some minor details were not predicted, the main effects of secondary flow on the mean flow were found to have been quite well simulated, yielding predictions that are in reasonable overall agreement with experiment.