[phandy]

I'm trying to run a validation case similar to the MPPICFoam cyclone example, except for I have a patch at the bottom which the lagrangian particles can exit through. I would like to plot the size and number of particles exiting the bottom and top outlets respectively in order to find the fractional efficiency for each particle size.

My initial thoughts are to include a function block in the controlDict. I'm not sure what should go in there, and if I need to write my own library to do the counting, or if there is one already available in OpenFOAM.

Alternatively, is there a way to get paraview to plot the same data I seek?

Could anyone help me figure out how to accomplish this?

[phandy]

A bit of a reply to my own top post. I'm new enough to openfoam to not have known that each generated timestep has a uniform/lagrangian/kinematicCloud/kinematicCloudOutputProperties file. In patchInteractionModel.localInteraction, there exist nEscape ([parcel?] count) and massEscape, which are arrays that I presume map to my kinematicCloudProperties localInteractionCoeffs dictionary. This gives the total mass escaped and the count, from which I can make guesses to the particle size, though I was hoping for information for each parcel individually. Well, I suppose something is much better than nothing.

[kou1shik]

You can use cloudFunctions in constant/kinematicCloudProperties. Use like this.

cloudFunctions
{
patchPostProcessing1
{
type patchPostProcessing;
maxStoredParcels 1e07;
patches ( outlet );
}

}

[Adamkat]

I added the cloudFunctions but now, how can I extract the information of particle hits?

[Adamkat]

Solved.

I wrote a script that extracts the data out of the patchPostProcessing files.

In hindsight, I could have used splashPanel (see: $FOAM_TUTORIALS/lagrangian/reactingParcelFilmFoam/splashPanel)

[arashfluid]

Originally Posted by Adamkat

Solved.

I wrote a script that extracts the data out of the patchPostProcessing files.

In hindsight, I could have used splashPanel (see: $FOAM_TUTORIALS/lagrangian/reactingParcelFilmFoam/splashPanel)

Dear Adamkat,
I also have a similar problem. I want to extract the data out of the patchPostProcessing files. Can you share your script?
Thanks

[Adamkat]

Dear Arashfluid,
I'm sorry but I have forgotten about that work a long time ago.
I guess you'll have to do it on your own.
Sorry,
Adam