scholarly journals Sinuous breakdown in a flat plate boundary layer exposed to free-stream turbulence

2007 ◽  
Vol 19 (8) ◽  
pp. 088101 ◽  
Author(s):  
J. Mans ◽  
H. C. de Lange ◽  
A. A. van Steenhoven
Keyword(s):  
Boundary Layer ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Free Stream Turbulence ◽  
Flat Plate Boundary Layer

scholarly journals Structure of a Flat Plate Boundary Layer Subjected to Free-Stream Turbulence

2004 ◽  
Vol 18 (2) ◽  
pp. 175-188 ◽  
Author(s):  
Frédéric Péneau ◽  
Henri Claude Boisson ◽  
Alain Kondjoyan ◽  
Ned Djilali
Keyword(s):  
Boundary Layer ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Free Stream Turbulence ◽  
Flat Plate Boundary Layer

scholarly journals A Theory for Wake-Induced Transition

1989 ◽  
Author(s):  
R. E. Mayle ◽  
K. Dullenkopf
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Turbulent Flow ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Transition Model ◽  
Model Comparisons ◽  
Turbulent Wakes ◽  
Flat Plate Boundary Layer

A theory for transition from laminar to turbulent flow as the result of unsteady, periodic passing of turbulent wakes in the free stream is developed using Emmons’ transition model. Comparisons made to flat plate boundary layer measurements and airfoil heat transfer measurements confirm the theory.

On the Receptivity of a Flat Plate Boundary Layer to Localized Free Stream Disturbances

1995 ◽  
pp. 341-348 ◽  
Author(s):  
A. A. Bakchinov ◽  
K. J. A. Westin ◽  
V. V. Kozlov ◽  
P. H. Alfredsson
Keyword(s):  
Boundary Layer ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Flat Plate Boundary Layer

A note on the distortion of a flat-plate boundary layer by free-stream vorticity normal to the plate

1993 ◽  
Vol 248 ◽  
pp. 531-541 ◽  
Author(s):  
M. E. Goldstein ◽  
S. J. Leib
Keyword(s):  
Boundary Layer ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Local Solution ◽  
Residual Velocity ◽  
Viscous Boundary Layer ◽  
Wall Boundary Layer ◽  
Viscous Boundary ◽  
Flat Plate Boundary Layer

The purpose of this note is to construct a local solution that eliminates a residual velocity discontinuity in the inviscid portion of a solution obtained in a recent paper by Goldstein, Leib & Cowley (1992). This result is of importance because it shows that the solution obtained in that paper is entirely non-singular outside the viscous wall boundary layer and that any singularity in the problem will have to arise in the usual way through a breakdown in the viscous boundary layer.

Studies on Wake-Induced Bypass Transition of Flat-Plate Boundary Layers Under Pressure Gradients and Free-Stream Turbulence

2006 ◽  
Author(s):  
Ken-Ichi Funazaki ◽  
Eitaro Koyabu
Keyword(s):  
Boundary Layer ◽  
Flat Plate ◽  
Free Stream ◽  
Turbine Blades ◽  
Plate Boundary ◽  
Influential Factors ◽  
Bypass Transition ◽  
Pressure Gradients ◽  
Free Stream Turbulence ◽  
Transitional Behavior

This study investigates wake-induced bypass transition of a flat-plate boundary layer that experiences favorable and adverse pressure gradients. The effect of free-stream turbulence is also examined. This paper mainly focuses on how the pressure gradients affect the transitional behavior of the wake-disturbed boundary layer with and without the influence of free-stream turbulence. A wall-contouring of the test duct generates the flow acceleration and deceleration on the flat plate, emulating aft-loading or front-loading pressure distributions of actual turbine blades. A spoked-wheel type wake generator is used to produce wakes moving over the boundary layer. Detailed boundary layer measurements are performed by use of a hot-wire anemometer. In addition to velocity fluctuations, which clearly indicate transition process, intermittency factors are obtained and compared with the results given by a transition model. Noticeable differences in transitional behavior are observed between the cases with and without the enhanced free-stream turbulence. It is also confirmed that the wake width as well as the direction of the bar movement are influential factors to the bypass transition.

A Theory for Wake-Induced Transition

1990 ◽  
Vol 112 (2) ◽  
pp. 188-195 ◽  
Author(s):  
R. E. Mayle ◽  
K. Dullenkopf
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Turbulent Flow ◽  
Flat Plate ◽  
Free Stream ◽  
Plate Boundary ◽  
Transition Model ◽  
Model Comparisons ◽  
Turbulent Wakes ◽  
Flat Plate Boundary Layer

A theory for transition from laminar to turbulent flow as the result of unsteady, periodic passing of turbulent wakes in the free stream is developed using Emmons’ transition model. Comparisons made to flat plate boundary layer measurements and airfoil heat transfer measurements confirm the theory.

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