[Elham]

Hi,

I want to have gradient of velocity field in each 0.1 sec. I am using calcFvcGrad tool in the controlDict. But it is written in every time step. How can I specify my own time step for writing gradient?

Thanks

[fabian_roesler]

Hi

You could choose

outputControl outputTime;

for the functionObject and use a

writeInterval of 0.1;

in controlDict.

Cheers

[Elham]

Hi,

Can I have the centre of each cell for the corresponding Ug? I want to plot a function of Ug versus the position in flowfield.

Regards

[fabian_roesler]

Hi,

The easiest way should be using paraview.
In paraview you an visualize the U gradient and open the spread sheet viewer. There you can see all cells with their index, position and stored field values. This spread sheet view can be stored as cvs data which can afterwards be processed in excel or other tools.

Cheers

Fabian

[Elham]

Thanks Fabian,

That's exactly what I want.

[Elham]

But I cannot save Ug in csv file. What should I do?

[Elham]

Sorry just ignore this message. I mixed up Ug with the eigenvalue.

[Elham]

I solved it myself by selecting the boundary meshes as well as internal mesh.