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UMIST.H
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23 
24 Class
25  Foam::UMISTLimiter
26 
27 Description
28  Class with limiter function which returns the limiter for the
29  UMIST differencing scheme.
30 
31  Used in conjunction with the template class LimitedScheme.
32 
33 SourceFiles
34  UMIST.C
35 
36 \*---------------------------------------------------------------------------*/
37 
38 #ifndef UMIST_H
39 #define UMIST_H
40 
41 #include "vector.H"
42 
43 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
44 
45 namespace Foam
46 {
47 
48 /*---------------------------------------------------------------------------*\
49  Class UMISTLimiter Declaration
50 \*---------------------------------------------------------------------------*/
51 
52 template<class LimiterFunc>
53 class UMISTLimiter
54 :
55  public LimiterFunc
56 {
57 
58 public:
59 
61  {}
62 
63  scalar limiter
64  (
65  const scalar cdWeight,
66  const scalar faceFlux,
67  const typename LimiterFunc::phiType& phiP,
68  const typename LimiterFunc::phiType& phiN,
69  const typename LimiterFunc::gradPhiType& gradcP,
70  const typename LimiterFunc::gradPhiType& gradcN,
71  const vector& d
72  ) const
73  {
74  scalar r = LimiterFunc::r
75  (
76  faceFlux, phiP, phiN, gradcP, gradcN, d
77  );
78 
79  return max(min(min(min(2*r, 0.75*r + 0.25), 0.25*r + 0.75), 2), 0);
80  }
81 };
82 
83 
84 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
85 
86 } // End namespace Foam
87 
88 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
89 
90 #endif
91 
92 // ************************************************************************* //
UMISTLimiter(Istream &)
Definition: UMIST.H:59
dimensioned< Type > max(const dimensioned< Type > &, const dimensioned< Type > &)
An Istream is an abstract base class for all input systems (streams, files, token lists etc)...
Definition: Istream.H:57
scalar limiter(const scalar cdWeight, const scalar faceFlux, const typename LimiterFunc::phiType &phiP, const typename LimiterFunc::phiType &phiN, const typename LimiterFunc::gradPhiType &gradcP, const typename LimiterFunc::gradPhiType &gradcN, const vector &d) const
Definition: UMIST.H:63
Class with limiter function which returns the limiter for the UMIST differencing scheme.
Definition: UMIST.H:52
dimensioned< Type > min(const dimensioned< Type > &, const dimensioned< Type > &)
Namespace for OpenFOAM.