[Fschi]

Hello,
is it possible to delete lagrangian particles/parcels as soon as they enter a specific cellSet/FaceZone etc?
Similar questions have been asked before in this forum, but never answered...

My Idea was to use the cloudFunctions in the reactingCloud1Properties. To define a FaceZone and then use postFace() function to set (the particle calling the postFace-Funktion) keepParticle = false to delete them.

So something like:

FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "constant";
    object      reactingCloud1Properties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
solution
{
    ...
}
...
subModels
{
    ...
}

cloudFunctions
{
    particleTracks
    {
     	type		     particleTracks;
	     trackInterval	5;
     	maxSamples   	100000;
	     resetOnWrite	true;

	     postFace
	     {
	     		parcelType	  reactingCloud1;
	     		facei		   myDefinedFaceZoneSet;
	     		keepParticle	false; 
	    	}
    }
}

But it doesn't work. The only thing that changes is, that there is mor output about the parcels..

Do I have to hardcode it in the CloudFunctionObject.C in this template instead of 'do nothing'?

...

	template<class CloudType>
	void Foam::CloudFunctionObject<CloudType>::postFace
	(
	     const typename CloudType::parcelType&,
	     const label,
	     bool&
	)
	{
	     // do nothing
	}
...

Or is there a more elegant way for deleting particles?

thanks for help in advance!

[thintn222]

I know it's late but I wonder if u solved your problem . I met the same problem now with lagrangian solvers . Thank you