fvcDDt.C
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25 
26 #include "fvcDDt.H"
27 #include "fvcDiv.H"
28 #include "fvMesh.H"
29 
30 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
31 
32 namespace Foam
33 {
34 
35 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
36 
37 namespace fvc
38 {
39 
40 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
41 
42 template<class Type>
43 tmp<VolField<Type>>
45 (
46  const surfaceScalarField& phi,
47  const VolField<Type>& psi
48 )
49 {
50  tmp<VolField<Type>> ddtDivPhiPsi
51  = fvc::ddt(psi) + fvc::div(phi, psi);
52 
53  if (phi.mesh().moving())
54  {
55  return ddtDivPhiPsi - fvc::div(phi + phi.mesh().phi())*psi;
56  }
57  else
58  {
59  return ddtDivPhiPsi - fvc::div(phi)*psi;
60  }
61 }
62 
63 
64 template<class Type>
67 (
68  const tmp<surfaceScalarField>& tphi,
69  const VolField<Type>& psi
70 )
71 {
72  tmp<VolField<Type>> DDtPsi
73  (
74  fvc::DDt(tphi(), psi)
75  );
76  tphi.clear();
77  return DDtPsi;
78 }
79 
80 
81 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
82 
83 } // End namespace fvc
84 
85 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
86 
87 } // End namespace Foam
88 
89 // ************************************************************************* //
const Mesh & mesh() const
Return mesh.
Generic GeometricField class.
A class for managing temporary objects.
Definition: tmp.H:55
void clear() const
If object pointer points to valid object:
Definition: tmpI.H:237
Calculate the substantive (total) derivative.
Calculate the divergence of the given field.
const volScalarField & psi
tmp< VolField< Type > > DDt(const surfaceScalarField &phi, const VolField< Type > &psi)
Definition: fvcDDt.C:45
tmp< VolField< Type > > ddt(const dimensioned< Type > dt, const fvMesh &mesh)
Definition: fvcDdt.C:45
tmp< VolField< Type > > div(const SurfaceField< Type > &ssf)
Definition: fvcDiv.C:47
Namespace for OpenFOAM.