scholarly journals DEPTH AVERAGED MODEL CONSIDERING TRANSFORMATION OF DOWNSTREAM VELOCITY IN CURVED CHANNEL IN GENERALIZED CURVILINEAR COORDINATE SYSTEM AND ITS VERIFICATION

2005 ◽  
Vol 49 ◽  
pp. 553-558
Author(s):  
Shinichiro ONDA ◽  
Takashi HOSODA ◽  
Ichiro KIMURA
Keyword(s):  
Coordinate System ◽  
Curvilinear Coordinate System ◽  
Curved Channel ◽  
Curvilinear Coordinate ◽  
Averaged Model

Flow Over a Cylinder at a Plane Boundary—A Model Based Upon (k–ε) Turbulence

1989 ◽  
Vol 111 (4) ◽  
pp. 414-419 ◽  
Author(s):  
T. Solberg ◽  
K. J. Eidsvik
Keyword(s):  
Pressure Gradient ◽  
Coordinate System ◽  
Adverse Pressure Gradient ◽  
Plane Boundary ◽  
Length Scale ◽  
Two Dimensional ◽  
Curvilinear Coordinate System ◽  
Recirculating Flow ◽  
Model Based ◽  
Curvilinear Coordinate

A model for two-dimensional flows over a cylinder at a plane boundary is developed. The model, based upon a (k-ε) turbulence closure, is formulated in a curvilinear coordinate system based upon frictionless flow. A length scale modification in areas of adverse pressure gradient and recirculating flow appears to be more realistic than the standard (k-ε) model. The main features of the predicted flow do not depend critically upon the details of the grid or model, which means that a well defined solution is obtained. The solution appears to be reasonable and validated to the extent that the data permits.

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