[koscfd]

Dear All,

Would it be possible please to help me with the below issue.

I have performed multiphase transient analysis in a pipe section using the interFoam solver and for the post-processing I am using Paraview.

My analysis lasts for 20s and the time-step is 0.1s. This means that every 0.1s, a folder has been created in my case folder with the relevant output.

I would like to extract the pressure profile along the pipe in a .csv file, say for a pipe spacing of 0.1m, for every time step separately ,i.e.,

For pipe node 0.1m (pressure values from 0s to 20s)
For pipe node 0.2m (pressure values from 0s to 20s)
...and so on.

Could you please advise me if this is feasible with Paraview? I understand that I need to take the average of certain cell values for each location. Is the "Line" tool from the "Sources" menu suitable? My pipe model consist of straight sections and bends.

The pressure output is in the form below:

FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    location    "0.1";
    object      p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions      [1 -1 -2 0 0 0 0];
internalField   nonuniform List<scalar> 
87480
(
0
-32.7721
-41.6279
-45.5351
-50.4148
-55.0199
-59.7664
..........

Thank you in advance.

[koscfd]

Hello,

I managed to export the results in a .csv file for all time steps with two options so far:

1. Cell data to point data
2. Cell centers

For information, the procedure is:
1. Load the file in paraview -> Click Apply
2. Filters/Alphabetical/Cell Data to Point Data -> Click Apply
3. File/Save Data -> Save in .csv
4. After step3, the "configure writer" appears -> Click "Write All Time Steps"
(separate .csv files are created for each time step)

The same procedure can be applied to extract the Cell centers.

What I would need to do is to extract the results of a line starting from the center of the pipe's cross section and running along the pipe (average results). I am able to do this for a straight section using the "Plot over Line" tool, but not for a bend. I tried also the "Sources/Poly Line Source" with which I drew the middle line in straight sections and in bends (as small straight sections). However, it does not seem to be able to read the output from my model.

Could you please advise me if there is a way to extract the average values along a pipe with bends in Paraview?

Thank you in advance,
Koscfd