FreeFOAM The Cross-Platform CFD Toolkit
harmonicSpring.H
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3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2008-2010 OpenCFD Ltd.
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23 
24 Class
25  Foam::tetherPotentials::harmonicSpring
26 
27 Description
28 
29 
30 SourceFiles
31  harmonicSpring.C
32 
33 \*---------------------------------------------------------------------------*/
34 
35 #ifndef harmonicSpring_H
36 #define harmonicSpring_H
37 
39 
40 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
41 
42 namespace Foam
43 {
44 namespace tetherPotentials
45 {
46 
47 /*---------------------------------------------------------------------------*\
48  Class harmonicSpring Declaration
49 \*---------------------------------------------------------------------------*/
50 
52 :
53  public tetherPotential
54 {
55  // Private data
56 
57  dictionary harmonicSpringCoeffs_;
58 
59  scalar springConstant_;
60 
61 
62 public:
63 
64  //- Runtime type information
65  TypeName("harmonicSpring");
66 
67 
68  // Constructors
69 
70  //- Construct from components
72  (
73  const word& name,
75  );
76 
77 
78  // Destructor
79 
81  {}
82 
83 
84  // Member Functions
85 
86  scalar energy(const vector r) const;
87 
88  vector force(const vector r) const;
89 
90  //- Read dictionary
91  bool read(const dictionary& tetherPotentialProperties);
92 };
93 
94 
95 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
96 
97 } // End namespace tetherPotentials
98 } // End namespace Foam
99 
100 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
101 
102 #endif
103 
104 // ************************ vim: set sw=4 sts=4 et: ************************ //