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Effect of axial diffusion of vorticity on flow development in circular conduits: Part I. Numerical solutions
Author(s) -
Vrentas J. S.,
Duda J. L.,
Bargeron K. G.
Publication year - 1966
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690120504
Subject(s) - vorticity , mechanics , boundary layer , reynolds number , flow (mathematics) , pressure drop , diffusion , mathematics , classical mechanics , physics , vortex , turbulence , thermodynamics
An entrance model is presented which extends the analysis of the flow development in the entrance region to flow regimes which are inadequately described by a boundary‐layer analysis. Results are presented for the numerical solutions of the boundary‐layer equations and the complete equations of motion at five different Reynolds numbers. The effect of the axial diffusion of vorticity on the pressure drop, entrance length, and development of the vorticity and velocity fields is demonstrated.