NonSphereDragForce.C
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25 
26 #include "NonSphereDragForce.H"
27 
28 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
29 
30 template<class CloudType>
32 (
33  CloudType& owner,
34  const fvMesh& mesh,
35  const dictionary& dict
36 )
37 :
38  ParticleForce<CloudType>(owner, mesh, dict, typeName, true),
39  phi_(this->coeffs().template lookup<scalar>("phi")),
40  a_(exp(2.3288 - 6.4581*phi_ + 2.4486*sqr(phi_))),
41  b_(0.0964 + 0.5565*phi_),
42  c_(exp(4.9050 - 13.8944*phi_ + 18.4222*sqr(phi_) - 10.2599*pow3(phi_))),
43  d_(exp(1.4681 + 12.2584*phi_ - 20.7322*sqr(phi_) + 15.8855*pow3(phi_)))
44 {
45  if (phi_ <= 0 || phi_ > 1)
46  {
48  << "Ratio of surface of sphere having same volume as particle to "
49  << "actual surface area of particle (phi) must be greater than 0 "
50  << "and less than or equal to 1" << exit(FatalError);
51  }
52 }
53 
54 
55 template<class CloudType>
57 (
59 )
60 :
62  phi_(df.phi_),
63  a_(df.a_),
64  b_(df.b_),
65  c_(df.c_),
66  d_(df.d_)
67 {}
68 
69 
70 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
71 
72 template<class CloudType>
74 {}
75 
76 
77 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
78 
79 template<class CloudType>
81 (
82  const typename CloudType::parcelType& p,
83  const typename CloudType::parcelType::trackingData& td,
84  const scalar dt,
85  const scalar mass,
86  const scalar Re,
87  const scalar muc
88 ) const
89 {
90  const scalar CdRe =
91  24*(1 + a_*pow(Re, b_)) + Re*c_/(1 + d_/(Re + rootVSmall));
92 
93  return forceSuSp(Zero, mass*0.75*muc*CdRe/(p.rho()*sqr(p.d())));
94 }
95 
96 
97 // ************************************************************************* //
dictionary dict
const scalar a_
Coefficient.
errorManipArg< error, int > exit(error &err, const int errNo=1)
Definition: errorManip.H:124
error FatalError
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:156
#define FatalErrorInFunction
Report an error message using Foam::FatalError.
Definition: error.H:306
dimensionedSymmTensor sqr(const dimensionedVector &dv)
Abstract base class for particle forces.
Definition: ParticleForce.H:53
const scalar phi_
The ratio of the surface area of a sphere with the same volume as.
fvMesh & mesh
Helper container for force Su and Sp terms.
Definition: forceSuSp.H:61
dimensionedScalar exp(const dimensionedScalar &ds)
static const zero Zero
Definition: zero.H:97
ParcelType parcelType
Type of parcel the cloud was instantiated for.
Definition: DSMCCloud.H:221
dimensionedScalar pow(const dimensionedScalar &ds, const dimensionedScalar &expt)
dimensionedScalar pow3(const dimensionedScalar &ds)
const scalar c_
Coefficient.
virtual ~NonSphereDragForce()
Destructor.
Mesh data needed to do the Finite Volume discretisation.
Definition: fvMesh.H:95
const scalar b_
Coefficient.
virtual forceSuSp calcCoupled(const typename CloudType::parcelType &p, const typename CloudType::parcelType::trackingData &td, const scalar dt, const scalar mass, const scalar Re, const scalar muc) const
Calculate the non-coupled force.
const scalar d_
Coefficient.
Drag model for non-spherical particles.
Templated base class for dsmc cloud.
Definition: DSMCCloud.H:75
NonSphereDragForce(CloudType &owner, const fvMesh &mesh, const dictionary &dict)
Construct from mesh.