The laminar-turbulent transition for fluids with a yield stress

The laminar-turbulent transition for fluids with a yield stress

The method for predicting the onset of turbulence was extended to the case of semifluids by means of a linear Bingham model. The method was applied to flow in pipes, concentric amuli, and between parallel plates. The pipeflow calculations were compared with literature data and found to agree well fo...

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Veröffentlicht in:A.I.Ch.E. (Am. Inst. Chem. Engrs.) J 1963-05, Vol.9 (3), p.306-309
1. Verfasser: Hanks, Richard W.
Format: Artikel
Sprache:eng
Schlagworte:
ANNULAR SPACE
BINGHAM MATERIAL
CONFIGURATION
ENGINEERING AND EQUIPMENT
ERRORS
FLOW MODELS
FLUID FLOW
FLUIDS
MATHEMATICS
PIPES
SPACERS
TUBES
TURBULENCE
UTAH
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Beschreibung
Zusammenfassung:The method for predicting the onset of turbulence was extended to the case of semifluids by means of a linear Bingham model. The method was applied to flow in pipes, concentric amuli, and between parallel plates. The pipeflow calculations were compared with literature data and found to agree well for N/sub He/ > (Hedstrom number) < 10/sup 5/. The deviations for N/sup He/ > 10/sup 5/ are explained as being due to the inadequacy of the simple model at high N/sub He/ values. (D.L.C.)
ISSN:0001-1541
1547-5905
DOI:10.1002/aic.690090307