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Previous: Turbulent Boundary Layer Up: Flat Plate Test Case Next: RANS, model, wall functions

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RANS, $ v2f$ model, lowRe (reolved to the wall)

The run script Allrun.sh settings is following:

 

turbulence=RANS
solver=simpleFoam
mode=incompressible
wall=lowRe #wallFunction
endTime=0.9
deltaT=0.0001
NProc=6
Nx=50
Ny=30
U=50;
turbulenceModel=v2f
yGrading=50000
RANS lowRe v2f friction coefficient ReX Cf comparison data

Figure: $ v2f$ turbulence model. Resolved to the wall. Mesh size 50×30. Friction coefficient $ C_f$ versus Reynolds based on x coordinate $ Re_x$ at the flat plate. Equations ([*]) show experimental correlation of various measurements. For laminar fluid flows at the flat plate the Blasius formula is used. For turbulent fluid flows at the flat plate the White formula is used.

RANS lowRe v2f friction coefficient ReTheta Cf comparison data

Figure: $ v2f$ turbulence model. Resolved to the wall. Mesh size 50×30. Friction coefficient $ C_f$ versus Reynolds based on momentum thickness $ Re_\Theta$ at the flat plate. The comparison data are from Karman-Schoenherr formula and NASA simulation (Spalart-Allmaras model)

RANS lowRe v2f turbulent boundary layer uy comparison data

Figure: $ v2f$ turbulence model. Resolved to the wall. Mesh size 50×30. Developed turbulent boundary layer in u+ and y+ coordinates at point where $ Re_\Theta = 10000$ The comparison data are from Coles velocity law and NASA simulation (Spalart-Allmaras model)

Previous: Turbulent Boundary Layer Up: Flat Plate Test Case Next: RANS, model, wall functions

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