CoulaloglouTavlarides.C
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25 
26 #include "CoulaloglouTavlarides.H"
28 
29 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
30 
31 namespace Foam
32 {
33 namespace diameterModels
34 {
35 namespace coalescenceModels
36 {
39  (
43  );
44 }
45 }
46 }
47 
48 
49 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
50 
53 (
54  const populationBalanceModel& popBal,
55  const dictionary& dict
56 )
57 :
58  coalescenceModel(popBal, dict),
59  C1_(dimensionedScalar::lookupOrDefault("C1", dict, dimless, 2.8)),
60  C2_(dimensionedScalar::lookupOrDefault("C2", dict, inv(dimArea), 1.83e9))
61 {}
62 
63 
64 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
65 
66 void
69 (
70  volScalarField& coalescenceRate,
71  const label i,
72  const label j
73 )
74 {
75  const phaseModel& continuousPhase = popBal_.continuousPhase();
76  const sizeGroup& fi = popBal_.sizeGroups()[i];
77  const sizeGroup& fj = popBal_.sizeGroups()[j];
78 
79  coalescenceRate +=
80  C1_*(pow(fi.x(), 2.0/3.0) + pow(fj.x(), 2.0/3.0))
81  *sqrt(pow(fi.x(), 2.0/9.0) + pow(fj.x(), 2.0/9.0))
82  *cbrt(popBal_.continuousTurbulence().epsilon())/(1 + popBal_.alphas())
83  *exp
84  (
85  - C2_*continuousPhase.thermo().mu()*continuousPhase.rho()
86  *popBal_.continuousTurbulence().epsilon()
87  /sqr(popBal_.sigmaWithContinuousPhase(fi.phase()))
88  /pow3(1 + popBal_.alphas())
89  *pow4(cbrt(fi.x())*cbrt(fj.x())/(cbrt(fi.x()) + cbrt(fj.x())))
90  );
91 }
92 
93 
94 // ************************************************************************* //
Macros for easy insertion into run-time selection tables.
Generic GeometricField class.
Base class for coalescence models.
Model of Coulaloglou and Tavlarides (1977). The coalescence rate is calculated by.
virtual void addToCoalescenceRate(volScalarField &coalescenceRate, const label i, const label j)
Add to coalescenceRate.
CoulaloglouTavlarides(const populationBalanceModel &popBal, const dictionary &dict)
Model for tracking the evolution of a dispersed phase size distribution due to coalescence (synonymou...
Single size class fraction field representing a fixed particle volume as defined by the user through ...
Definition: sizeGroup.H:102
const dimensionedScalar & x() const
Return representative volume of the sizeGroup.
Definition: sizeGroupI.H:57
const phaseModel & phase() const
Return const-reference to the phase.
Definition: sizeGroupI.H:36
A list of keyword definitions, which are a keyword followed by any number of values (e....
Definition: dictionary.H:160
virtual tmp< volScalarField > mu() const =0
Dynamic viscosity of mixture [kg/m/s].
virtual const rhoThermo & thermo() const =0
Return the thermophysical model.
virtual const volScalarField & rho() const =0
Return the density field.
addToRunTimeSelectionTable(coalescenceModel, AdachiStuartFokkink, dictionary)
defineTypeNameAndDebug(AdachiStuartFokkink, 0)
Namespace for OpenFOAM.
dimensionedScalar exp(const dimensionedScalar &ds)
intWM_LABEL_SIZE_t label
A label is an int32_t or int64_t as specified by the pre-processor macro WM_LABEL_SIZE.
Definition: label.H:59
dimensionedSymmTensor sqr(const dimensionedVector &dv)
dimensionedScalar pow3(const dimensionedScalar &ds)
const dimensionSet dimless
dimensionedScalar pow(const dimensionedScalar &ds, const dimensionedScalar &expt)
dimensionedScalar sqrt(const dimensionedScalar &ds)
dimensionedScalar pow4(const dimensionedScalar &ds)
dimensionedSphericalTensor inv(const dimensionedSphericalTensor &dt)
const dimensionSet dimArea
dimensionedScalar cbrt(const dimensionedScalar &ds)
dictionary dict