Streamline Curvature Effects on Turbulent Boundary Layers

AIAA Journal ◽  
1977 ◽  
Vol 15 (4) ◽  
pp. 574-580 ◽  
Author(s):  
D.C. Wilcox ◽  
T.L. Chambers
Keyword(s):  
Boundary Layers ◽  
Turbulent Boundary Layers ◽  
Streamline Curvature ◽  
Curvature Effects

A Mixing-Length Model for the Prediction of Convex Curvature Effects on Turbulent Boundary Layers

1984 ◽  
Vol 106 (1) ◽  
pp. 142-148 ◽  
Author(s):  
E. W. Adams ◽  
J. P. Johnston
Keyword(s):  
Heat Transfer ◽  
Layer Thickness ◽  
Boundary Layers ◽  
Turbulent Boundary Layers ◽  
Radius Of Curvature ◽  
Data Sets ◽  
Mixing Length ◽  
Flat Wall ◽  
Curvature Effects ◽  
Layer Thickness Ratio

A mixing-length model is developed for the prediction of turbulent boundary layers with convex streamwise curvature. For large layer thickness ratio, δ/R > 0.05, the model scales mixing length on the wall radius of curvature, R. For small δ/R, ordinary flat wall modeling is used for the mixing-length profile with curvature corrections, following the recommendations of Eide and Johnston [7]. Effects of streamwise change of curvature are considered; a strong lag from equilibrium is required when R increases downstream. Fifteen separate data sets were compared, including both hydrodynamic and heat transfer results. In this paper, six of these computations are presented and compared to experiment.

Experiment on convex curvature effects in turbulent boundary layers

1973 ◽  
Vol 60 (1) ◽  
pp. 43-62 ◽  
Author(s):  
Ronald M. C. So ◽  
George L. Mellor
Keyword(s):  
Boundary Layer ◽  
Velocity Profile ◽  
Boundary Layers ◽  
Reynolds Stress ◽  
Convex Surface ◽  
Turbulent Boundary Layers ◽  
Turbulence Measurements ◽  
Curvature Effects ◽  
Convex Wall ◽  
Complete Set

Turbulent boundary layers along a convex surface of varying curvature were investigated in a specially designed boundary-layer tunnel. A fairly complete set of turbulence measurements was obtained.The effect of curvature is striking. For example, along a convex wall the Reynolds stress is decreased near the wall and vanishes about midway between the wall and the edge of a boundary layer where there exists a velocity profile gradient created upstream of the curved wall.

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