[sufjanst]

Hey guys,

I am using Openfoam 5.0 and I calculated a flowfield.
I want to use the data from a plane as a boundary condition for another case (the position is the same). I wanted to use "fixedProfile" as a boundary condition associated to a csv file.
I can write out a .csv file with paraview with all the points and data but it won't work as a boundary condition. I also tried to write out a .csv file with sampleDict but it didn't work either (I only got vtk files).


B/C;
INTERFACE
{
type fixedProfile;
profile csvFile;

profileCoeffs
{
nHeaderLine 1;
refColumn 0;
componentColumns (1 2 3);
separator ",";
mergeSeparators no;
file "0/UProfile.csv";
outOfBounds clamp;
interpolationScheme linear;
}
direction (0 0 1);
origin 0;
}

My .csv file looks like this:
-8.64321e-01,-1.34479e+00,1.05265e+00,0
-1.16852e-02,-1.70701e-02,1.57082e-02,0
-1.16852e-02,-1.70701e-02,1.57082e-02,0
0.00000e+00,0.00000e+00,0.00000e+00,0
0.00000e+00,0.00000e+00,0.00000e+00,0
-6.73941e-05,3.49976e-03,1.63564e-03,0
-6.73941e-05,3.49976e-03,1.63564e-03,0
-1.46460e-02,-1.81075e-02,1.33139e-02,0

I get the error "out-of-order value: -0.116852 at index 2"

Does anyone know how to fix this? How to I implement the coordinates to the csv file, so that openfoam "knows" which value belongs to which coordinate?

Thank you very much
sufjanst

[ykanani]

Hi,

I have not used this BC myself. But please take a look at the following link where the boundary condition is proposed and sample tutorials are available for download (includes csv file)

https://bugs.openfoam.org/view.php?id=1922

Yousef

[MaySea]

Do you know if there is a way to introduce a logaritmic velocity profile in relation to a face's lowest Z coordinate? I have a 3D terrain topography as a base of the mesh, and I want the flow to start at e.g. 0.5 m/s 1 m above the surface. Thanks