[wqd]

Hey, OpenFoamers,

i want to do the coupling of LPT and VOF in interfoam in OpenFoam 7.0. I followed the tutorials by Chalmers(based on OpenFoam 4.0, I think) but I get an error

solidParticleCloud.C: In member function 'void Foam::solidParticleCloud::inject(Foam::solidParticle::trackingData&)':
solidParticleCloud.C:79:29: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
     mesh_.findCellFacePt(td.cloud().posP1_, cellI, tetFaceI, tetPtI);
                             ^~~~~
solidParticleCloud.C:81:53: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
     solidParticle* ptr1= new solidParticle(mesh_,td.cloud().posP1_,cellI,
                                                     ^~~~~
solidParticleCloud.C:82:28: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
      tetFaceI, tetPtI,  td.cloud().dP1_,td.cloud().UP1_);
                            ^~~~~
solidParticleCloud.C:82:44: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
      tetFaceI, tetPtI,  td.cloud().dP1_,td.cloud().UP1_);
                                            ^~~~~
solidParticleCloud.C:85:29: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
     mesh_.findCellFacePt(td.cloud().posP2_, cellI, tetFaceI, tetPtI);
                             ^~~~~
solidParticleCloud.C:87:53: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
     solidParticle* ptr2= new solidParticle(mesh_,td.cloud().posP2_,cellI,
                                                     ^~~~~
solidParticleCloud.C:88:42: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
                    tetFaceI, tetPtI,  td.cloud().dP2_,td.cloud().UP2_);
                                          ^~~~~
solidParticleCloud.C:88:58: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
                    tetFaceI, tetPtI,  td.cloud().dP2_,td.cloud().UP2_);
                                                          ^~~~~
solidParticleCloud.C: In member function 'void Foam::solidParticleCloud::move(const dimensionedVector&)':
solidParticleCloud.C:106:33: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
     if(mesh_.time().value()> td.cloud().tInjStart &&
                                 ^~~~~
solidParticleCloud.C:107:27: error: 'class Foam::solidParticle::trackingData' has no member named 'cloud'
  mesh_.time().value()< td.cloud().tInjEnd )

does someone have a hit for this?

[wqd]

can someone explain the UEqn in MPPICInterfoam?

[HPE]

`UEqn` is the de facto name for the system of linear algebraic equations constructed for the velocity field in OpenFOAM. So, it is like `A x = b` matrix system, where you try to invert `A` to the right hand side, so that you can find the unknown `x` field, which is the velocity field in`UEqn`.