[schf]

Hello everybody,
I hope you can help me understanding the kinematicCloud. I created one like this:

const word kinematicCloudName
(
    args.optionLookupOrDefault<word>("cloudName", "mykinematicCloud")
);

Info<< "Constructing kinematicCloud " << kinematicCloudName << endl;
basicKinematicCloud mykinematicCloud
(
    kinematicCloudName,
    rho,
    U,
    mu,
    g
);

And now I want to add some particles by hand with a given velocity and diameter in a own function KinematicCloud<CloudType>::injectLPT(...).
As far as I understand, the kinematicCloud uses just parcels. So if i want to add single particles, I have to use one parcel per particle.

I implemented something similar for the solidCloud for adding particles to the cloud:

    solidParticle* ptr1 = new solidParticle(mesh_, coordinates_, celli_, tetFacei_, tetPti_,tempDiam, tempU);
    
    Cloud<solidParticle>::addParticle(ptr1);

But for the KinematicParcel I don't get it working

For this:

    KinematicParcel* ptr1 = new KinematicParcel(mesh_, coordinates_, celli_, tetFacei_, tetPti_);//,tempDiam, tempU);

I get this error:

In file included from xxx/src/lagrangian/intermediate/lnInclude/KinematicCloud.H:645:0,
                 from xxx/src/lagrangian/intermediate/lnInclude/basicKinematicCloud.H:36,
                 from myInterFoam.C:54:

xxx/src/lagrangian/intermediate/lnInclude/KinematicCloud.C: In Elementfunktion »void Foam::KinematicCloud<CloudType>::injectLPT(const vector&, const scalar&, const vector&)«:
xxx/src/lagrangian/intermediate/lnInclude/KinematicCloud.C:807:20: Fehler: missing template arguments before »*« token
     KinematicParcel* ptr1 = new KinematicParcel(mesh_, coordinates_, celli_, tetFacei_, tetPti_);//,tempDiam, tempU);

But which template arguments are missing?

[vishwesh]

Hi!

I am also trying to do a similar thing. I have a questions regarding this.

1. What OpenFOAM Version are you using?
2. According to the error a template argument is missing so most probably you are missing an argument. Try referring to the template of kinematicParcel and kinematicCloud to find out the arguments to define a new kinematicParcel.

Also, how are you adding a particle to the existing kinematicCloud?
I have a solver which detects a droplet during the runtime and is able to find out the following information about the droplet:

• Position of the center of the droplet
• Velocity of the droplet
• Diameter of the droplet
• Volume of the droplet

Now since I don't know when a particle will be detected by my solver, I can't get an SOI where all the particles have to be added to the kinematicCloud for tracking. So, I want to keep my SOI as 0 and then add any newly detected particle to the cloud for further tracking. How are you adding a particle/parcel to your kinematicCloud?

[schf]

Hey!
I'm using OpenFOAM 5.0

The constructors for the KinematicParcel-Template are:

...
    // Constructors

        //- Construct from mesh, coordinates and topology
        //  Other properties initialised as null
        inline KinematicParcel
        (
            const polyMesh& mesh,
            const barycentric& coordinates,
            const label celli,
            const label tetFacei,
            const label tetPti
        );

        //- Construct from a position and a cell, searching for the rest of the
        //  required topology. Other properties are initialised as null.
        inline KinematicParcel
        (
            const polyMesh& mesh,
            const vector& position,
            const label celli
        );

        //- Construct from components
        inline KinematicParcel
        (
            const polyMesh& mesh,
            const barycentric& coordinates,
            const label celli,
            const label tetFacei,
            const label tetPti,
            const label typeId,
            const scalar nParticle0,
            const scalar d0,
            const scalar dTarget0,
            const vector& torque0,
            const constantProperties& constProps
        );
...

So that should be fine.

For the missing template I think it should be something like:

    KinematicCloud<ParcelType>* ptr1 = new KinematicParcel(mesh_, coordinates_, celli_, tetFacei_, tetPti_);

but then I get the error, that the »ParcelType« was not defined. And I don't know which files I have to include...

how are you adding a particle to the existing kinematicCloud?

I thought it's possible (similar to the solidParticle) to create a parcel and add it's pointer to the KinematicCloud.
But now I'm not sure if it's possible and was hoping for some help here...

[wadekar]

Hi VIshwesh

I want to sample the spray particles at specified location/cell. I am using OF2.2.x
I am writing for loop over the particle like this:

const basicSprayParcel* sprayPtr = new basicSprayParcel (mesh, false) ;

for (basicSprayParcel::const_iterator elmnt = sprayPtr->begin(); elmnt != sprayPtr->end();
++elmnt)
{
vector p = elmnt().position();
....
}

but, the error is element is not defined. Can you give some hint about that....
can you please share your code to sample the particle ?

Thanks
Sandip