Model of the turbulent burst phenomenon - Predictions for eddy viscosity

AIAA Journal ◽  
1981 ◽  
Vol 19 (12) ◽  
pp. 1600-1602
Author(s):  
L. C. Thomas ◽  
M. B. Ibrahim
Keyword(s):  
Eddy Viscosity ◽  
Turbulent Burst

A Model of the Turbulent Burst Phenomenon: Fully Developed Transitional Turbulent Flow Between Parallel Plates

1982 ◽  
Vol 49 (4) ◽  
pp. 697-703 ◽  
Author(s):  
L. C. Thomas ◽  
H. M. Kadry
Keyword(s):  
Turbulent Flow ◽  
Eddy Viscosity ◽  
Wall Region ◽  
Parallel Plates ◽  
Burst Frequency ◽  
Mean Velocity ◽  
Eddy Viscosity Model ◽  
Region Model ◽  
High Reynolds ◽  
Turbulent Burst

An analysis is presented for fully developed transitional turbulent flow between parallel plates that features the use of a turbulent burst model for the important wall region. Model closure is accomplished by the specification of the mean burst frequency and, for moderate to high Reynolds numbers, by matching with a classical eddy viscosity model for the turbulent core. Predictions obtained for friction factor and mean velocity distribution are compared with experimental data for fully developed transitional turbulent flow in a channel with large aspect ratio. Predictions are also developed for the eddy viscosity within the wall region for transitional turbulent conditions.

INCREASE OF HEAT TRANSFER AND NEGATIVE EDDY VISCOSITY IN TURBULENT FLOWS INFLUENCED BY A MAGNETIC FIELD

1990 ◽  
Author(s):  
C. Henoch ◽  
Martin Hoffert ◽  
A. Baron ◽  
D. Klaiman ◽  
Semion Sukoriansky ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Turbulent Flows ◽  
Eddy Viscosity
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