FreeFOAM The Cross-Platform CFD Toolkit
SingleKineticRateDevolatilisation.C
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25 
27 
28 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
29 
30 template <class CloudType>
33 (
34  const dictionary& dict,
35  CloudType& owner
36 )
37 :
38  DevolatilisationModel<CloudType>(dict, owner, typeName),
39  A1_(dimensionedScalar(this->coeffDict().lookup("A1")).value()),
40  E_(dimensionedScalar(this->coeffDict().lookup("E")).value()),
41  volatileResidualCoeff_
42  (
43  readScalar(this->coeffDict().lookup("volatileResidualCoeff"))
44  )
45 {}
46 
47 
48 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
49 
50 template <class CloudType>
53 {}
54 
55 
56 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
57 
58 template<class CloudType>
60 {
61  return true;
62 }
63 
64 
65 template<class CloudType>
67 (
68  const scalar dt,
69  const scalar mass0,
70  const scalar mass,
71  const scalar T,
72  const scalar YVolatile0,
73  const scalar YVolatile,
74  bool& canCombust
75 ) const
76 {
77  const scalar massVolatile0 = YVolatile0*mass;
78  const scalar massVolatile = YVolatile*mass;
79 
80  if (massVolatile <= volatileResidualCoeff_*massVolatile0)
81  {
82  canCombust = true;
83  }
84 
85  // Kinetic rate
86  const scalar kappa = A1_*exp(-E_/(specie::RR*T));
87 
88  // Volatile devolatilisation from particle to carrier gas phase
89  const scalar dMass = min(dt*kappa*massVolatile, massVolatile);
90 
91  return dMass;
92 }
93 
94 
95 // ************************ vim: set sw=4 sts=4 et: ************************ //