FreeFOAM The Cross-Platform CFD Toolkit
supersonicFreestreamFvPatchVectorField.H
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23 
24 Class
25  Foam::supersonicFreestreamFvPatchVectorField
26 
27 Description
28  Supersonic free stream condition.
29 
30  Supersonic outflow is vented according to ???
31 
32  Supersonic inflow is assumed to occur according to the Prandtl-Meyer
33  expansion process.
34 
35  Subsonic outflow is zero-gradiented from inside the domain.
36 
37  N.B. This boundary condition is ill-posed if the free-stream flow is
38  normal to the boundary.
39 
40 SourceFiles
41  supersonicFreestreamFvPatchVectorField.C
42 
43 \*---------------------------------------------------------------------------*/
44 
45 #ifndef supersonicFreestreamFvPatchVectorFields_H
46 #define supersonicFreestreamFvPatchVectorFields_H
47 
50 
51 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
52 
53 namespace Foam
54 {
55 
56 /*---------------------------------------------------------------------------*\
57  Class supersonicFreestreamFvPatch Declaration
58 \*---------------------------------------------------------------------------*/
59 
61 :
62  public mixedFvPatchVectorField
63 {
64  // Private data
65 
66  //- Velocity of the free stream
67  vector UInf_;
68 
69  //- Pressure of the free stream
70  scalar pInf_;
71 
72  //- Temperature of the free stream
73  scalar TInf_;
74 
75  //- Heat capacity ratio
76  scalar gamma_;
77 
78 
79 public:
80 
81  //- Runtime type information
82  TypeName("supersonicFreestream");
83 
84 
85  // Constructors
86 
87  //- Construct from patch and internal field
89  (
90  const fvPatch&,
92  );
93 
94  //- Construct from patch, internal field and dictionary
96  (
97  const fvPatch&,
99  const dictionary&
100  );
101 
102  //- Construct by mapping given supersonicFreestreamFvPatchVectorField
103  // onto a new patch
105  (
107  const fvPatch&,
109  const fvPatchFieldMapper&
110  );
111 
112  //- Construct as copy
114  (
116  );
117 
118  //- Construct and return a clone
120  {
122  (
124  );
125  }
126 
127  //- Construct as copy setting internal field reference
129  (
132  );
133 
134  //- Construct and return a clone setting internal field reference
136  (
138  ) const
139  {
141  (
143  );
144  }
145 
146 
147  // Member functions
148 
149  // Access
150 
151  //- Return the velocity at infinity
152  const vector& UInf() const
153  {
154  return UInf_;
155  }
156 
157  //- Return reference to the velocity at infinity to allow adjustment
159  {
160  return UInf_;
161  }
162 
163  //- Return the pressure at infinity
164  scalar pInf() const
165  {
166  return pInf_;
167  }
168 
169  //- Return reference to the pressure at infinity to allow adjustment
170  scalar& pInf()
171  {
172  return pInf_;
173  }
174 
175  //- Return the temperature at infinity
176  scalar TInf() const
177  {
178  return TInf_;
179  }
180 
181  //- Return reference to the temperature at infinity
182  // to allow adjustment
183  scalar& TInf()
184  {
185  return TInf_;
186  }
187 
188 
189  // Evaluation functions
190 
191  //- Update the coefficients associated with the patch field
192  virtual void updateCoeffs();
193 
194 
195  //- Write
196  virtual void write(Ostream&) const;
197 };
198 
199 
200 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
201 
202 } // End namespace Foam
203 
204 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
205 
206 #endif
207 
208 // ************************ vim: set sw=4 sts=4 et: ************************ //