calcFvcGrad output time control
 

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

Hi

You could choose
for the functionObject and use a
in controlDict.

Cheers

Ug versus position
 

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

paraview with spread sheet view data export
 

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

Thanks Fabian,

That's exactly what I want.

cannot save Ug in csv file
 

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

imaginary part of Ug missing
 

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

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