SphereDragForce.C
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25 
26 #include "SphereDragForce.H"
27 
28 // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
29 
30 template<class CloudType>
31 Foam::scalar Foam::SphereDragForce<CloudType>::CdRe(const scalar Re) const
32 {
33  if (Re > 1000.0)
34  {
35  return 0.424*Re;
36  }
37  else
38  {
39  return 24.0*(1.0 + 1.0/6.0*pow(Re, 2.0/3.0));
40  }
41 }
42 
43 
44 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
45 
46 template<class CloudType>
48 (
49  CloudType& owner,
50  const fvMesh& mesh,
51  const dictionary& dict
52 )
53 :
54  ParticleForce<CloudType>(owner, mesh, dict, typeName, false)
55 {}
56 
57 
58 template<class CloudType>
60 (
62 )
63 :
65 {}
66 
67 
68 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
69 
70 template<class CloudType>
72 {}
73 
74 
75 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
76 
77 template<class CloudType>
79 (
80  const typename CloudType::parcelType& p,
81  const scalar dt,
82  const scalar mass,
83  const scalar Re,
84  const scalar muc
85 ) const
86 {
87  forceSuSp value(Zero, 0.0);
88 
89  value.Sp() = mass*0.75*muc*CdRe(Re)/(p.rho()*sqr(p.d()));
90 
91  return value;
92 }
93 
94 
95 // ************************************************************************* //
dictionary dict
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:137
dimensionedSymmTensor sqr(const dimensionedVector &dv)
Abstract base class for particle forces.
Definition: ParticleForce.H:53
Helper container for force Su and Sp terms.
Definition: forceSuSp.H:61
dynamicFvMesh & mesh
static const zero Zero
Definition: zero.H:91
ParcelType parcelType
Type of parcel the cloud was instantiated for.
Definition: DSMCCloud.H:217
dimensionedScalar pow(const dimensionedScalar &ds, const dimensionedScalar &expt)
Drag model based on assumption of solid spheres.
virtual forceSuSp calcCoupled(const typename CloudType::parcelType &p, const scalar dt, const scalar mass, const scalar Re, const scalar muc) const
Calculate the coupled force.
Mesh data needed to do the Finite Volume discretisation.
Definition: fvMesh.H:78
SphereDragForce(CloudType &owner, const fvMesh &mesh, const dictionary &dict)
Construct from mesh.
virtual ~SphereDragForce()
Destructor.
Templated base class for dsmc cloud.
Definition: DSMCCloud.H:68
scalarField Re(const UList< complex > &cf)
Definition: complexFields.C:97
scalar Sp() const
Return const access to the implicit coefficient [kg/s].
Definition: forceSuSpI.H:62