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Old   December 10, 2018, 09:11
Default Flat Plate
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Kevin Habrock
Join Date: Oct 2018
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Hello, Foamers,

I've been trying to plot the "Law of the wall" on a flat plate for quite some time now. However, I have problems to get the desired values in the turbulent area. I use both a BlockMesh and a mesh from StarCCM to get the result with OpenFOAM (Figure 1.).

StarrCCM: 170042 Cells
BlockMesh V1: 7200 Cells
BlockMesh V2: 220000 Cells

But in all cases I get the same wrong result (Fig2.). I calculated all calculations compressible as well as incompressible.
As reference simulation I use the correct result of StarCCM+ and the literature.
Now the question is whether it may be due to the boundary conditions (Fig3).
I determine the velocity curves and the wall shear stresses with ParaFOAM.
My analytical calculation of the wall shear stress corresponds to the result of ParaFOAM (Fig4).

I would be very grateful if you could take a quick look at my case.

Best regards

Kevin
Attached Images
File Type: jpg Fig1. Mesh.JPG (56.6 KB, 22 views)
File Type: jpg Fig2.Plot.JPG (27.0 KB, 26 views)
File Type: jpg Fig3 BC.JPG (35.5 KB, 22 views)
File Type: jpg Fig4.WallShearStress.jpg (55.6 KB, 24 views)
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