FreeFOAM The Cross-Platform CFD Toolkit
SIBS.H
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1 /*---------------------------------------------------------------------------*\
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3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
6  \\/ M anipulation |
7 -------------------------------------------------------------------------------
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23 
24 Class
25  Foam::SIBS
26 
27 Description
28  Foam::SIBS
29 
30 SourceFiles
31  SIMPR.C
32  polyExtrapolate.C
33 
34 \*---------------------------------------------------------------------------*/
35 
36 #ifndef SIBS_H
37 #define SIBS_H
38 
39 #include <ODE/ODESolver.H>
40 
41 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
42 
43 namespace Foam
44 {
45 
46 /*---------------------------------------------------------------------------*\
47  Class SIBS Declaration
48 \*---------------------------------------------------------------------------*/
49 
50 class SIBS
51 :
52  public ODESolver
53 {
54  // Private data
55 
56  static const label kMaxX_ = 7, iMaxX_ = kMaxX_ + 1;
57  static const label nSeq_[iMaxX_];
58 
59  static const scalar safe1, safe2, redMax, redMin, scaleMX;
60 
61  mutable scalarField a_;
62  mutable scalarSquareMatrix alpha_;
63  mutable scalarRectangularMatrix d_p_;
64  mutable scalarField x_p_;
65  mutable scalarField err_;
66 
67  mutable scalarField yTemp_;
68  mutable scalarField ySeq_;
69  mutable scalarField yErr_;
70  mutable scalarField dfdx_;
71  mutable scalarSquareMatrix dfdy_;
72 
73  mutable label first_, kMax_, kOpt_;
74  mutable scalar epsOld_, xNew_;
75 
76 
77  // Private member functions
78 
79  void SIMPR
80  (
81  const ODE& ode,
82  const scalar xStart,
83  const scalarField& y,
84  const scalarField& dydx,
85  const scalarField& dfdx,
86  const scalarSquareMatrix& dfdy,
87  const scalar deltaX,
88  const label nSteps,
89  scalarField& yEnd
90  ) const;
91 
92  void polyExtrapolate
93  (
94  const label iest,
95  const scalar xest,
96  const scalarField& yest,
97  scalarField& yz,
98  scalarField& dy,
99  scalarField& x_p,
101  ) const;
102 
103 
104 public:
105 
106  //- Runtime type information
107  TypeName("SIBS");
108 
109 
110  // Constructors
111 
112  //- Construct from ODE
113  SIBS(const ODE& ode);
114 
115 
116  // Member Functions
117 
118  void solve
119  (
120  const ODE& ode,
121  scalar& x,
122  scalarField& y,
123  scalarField& dydx,
124  const scalar eps,
125  const scalarField& yScale,
126  const scalar hTry,
127  scalar& hDid,
128  scalar& hNext
129  ) const;
130 };
131 
132 
133 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
134 
135 } // End namespace Foam
136 
137 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
138 
139 #endif
140 
141 // ************************ vim: set sw=4 sts=4 et: ************************ //