Ripple Morphodynamics in Wave-Current Boundary-Layer Flows

2006 ◽  
Author(s):  
Marcelo H. Garcia
Keyword(s):  
Boundary Layer ◽  
Boundary Layer Flows

A new branch of the temperature distribution of boundary-layer flows over an impermeable stretching plate

2007 ◽  
Vol 44 (5) ◽  
pp. 501-504 ◽  
Author(s):  
Yue Tan ◽  
Xiang-Cheng You ◽  
Hang Xu ◽  
Shi-Jun Liao
Keyword(s):  
Boundary Layer ◽  
Temperature Distribution ◽  
Boundary Layer Flows ◽  
Stretching Plate

Jeffery-Hamel boundary-layer flows over curved beds

1988 ◽  
Vol 186 ◽  
pp. 583-597 ◽  
Author(s):  
P. M. Eagles
Keyword(s):  
Boundary Layer ◽  
Flow Field ◽  
Film Flow ◽  
Local Approximation ◽  
Main Stream ◽  
Streamwise Direction ◽  
Boundary Layer Flows ◽  
Boundary Layer Equations ◽  
First Approximation ◽  
Local Value

We find certain exact solutions of Jeffery-Hamel type for the boundary-layer equations for film flow over certain beds. If β is the angle of the bed with the horizontal and S is the arclength these beds have equation sin β = (const.)S−3, and allow a description of flows on concave and convex beds. The velocity profiles are markedly different from the semi-Poiseuille flow on a plane bed.We also find a class of beds in which the Jeffery-Hamel flows appear as a first approximation throughout the flow field, which is infinite in streamwise extent. Since the parameter γ specifying the Jeffery-Hamel flow varies in the streamwise direction this allows a description of flows over curved beds which are slowly varying, as described in the theory, in such a way that the local approximation is that Jeffery-Hamel flow with the local value of γ. This allows the description of flows with separation and reattachment of the main stream in some cases.

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