FreeFOAM The Cross-Platform CFD Toolkit
tensorField.C
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24 \*---------------------------------------------------------------------------*/
25 
26 #include "tensorField.H"
28 
29 #define TEMPLATE
31 
32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
33 
34 namespace Foam
35 {
36 
37 // * * * * * * * * * * * * * * * global functions * * * * * * * * * * * * * //
38 
39 UNARY_FUNCTION(scalar, tensor, tr)
46 UNARY_FUNCTION(scalar, tensor, det)
48 
49 void inv(Field<tensor>& tf, const UList<tensor>& tf1)
50 {
51  if (tf.empty())
52  {
53  return;
54  }
55 
56  scalar scale = magSqr(tf1[0]);
57  Vector<bool> removeCmpts
58  (
59  magSqr(tf1[0].xx())/scale < SMALL,
60  magSqr(tf1[0].yy())/scale < SMALL,
61  magSqr(tf1[0].zz())/scale < SMALL
62  );
63 
64  if (removeCmpts.x() || removeCmpts.y() || removeCmpts.z())
65  {
66  tensorField tf1Plus(tf1);
67 
68  if (removeCmpts.x())
69  {
70  tf1Plus += tensor(1,0,0,0,0,0,0,0,0);
71  }
72 
73  if (removeCmpts.y())
74  {
75  tf1Plus += tensor(0,0,0,0,1,0,0,0,0);
76  }
77 
78  if (removeCmpts.z())
79  {
80  tf1Plus += tensor(0,0,0,0,0,0,0,0,1);
81  }
82 
83  TFOR_ALL_F_OP_FUNC_F(tensor, tf, =, inv, tensor, tf1Plus)
84 
85  if (removeCmpts.x())
86  {
87  tf -= tensor(1,0,0,0,0,0,0,0,0);
88  }
89 
90  if (removeCmpts.y())
91  {
92  tf -= tensor(0,0,0,0,1,0,0,0,0);
93  }
94 
95  if (removeCmpts.z())
96  {
97  tf -= tensor(0,0,0,0,0,0,0,0,1);
98  }
99  }
100  else
101  {
102  TFOR_ALL_F_OP_FUNC_F(tensor, tf, =, inv, tensor, tf1)
103  }
104 }
105 
107 {
108  tmp<tensorField> result(new tensorField(tf.size()));
109  inv(result(), tf);
110  return result;
111 }
112 
113 tmp<tensorField> inv(const tmp<tensorField>& tf)
114 {
115  tmp<tensorField> tRes = reuseTmp<tensor, tensor>::New(tf);
116  inv(tRes(), tf());
118  return tRes;
119 }
120 
123 
125 UNARY_FUNCTION(tensor, symmTensor, eigenVectors)
126 
127 
128 template<>
129 tmp<Field<tensor> > transformFieldMask<tensor>
130 (
131  const symmTensorField& stf
132 )
133 {
134  tmp<tensorField> tRes(new tensorField(stf.size()));
135  tensorField& res = tRes();
136  TFOR_ALL_F_OP_F(tensor, res, =, symmTensor, stf)
137  return tRes;
138 }
139 
140 template<>
141 tmp<Field<tensor> > transformFieldMask<tensor>
142 (
143  const tmp<symmTensorField>& tstf
144 )
145 {
147  tstf.clear();
148  return ret;
149 }
150 
151 
152 // * * * * * * * * * * * * * * * global operators * * * * * * * * * * * * * //
153 
156 
157 BINARY_OPERATOR(vector, vector, tensor, /, divide)
158 BINARY_TYPE_OPERATOR(vector, vector, tensor, /, divide)
159 
160 
161 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
162 
163 } // End namespace Foam
164 
165 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
166 
168 
169 // ************************ vim: set sw=4 sts=4 et: ************************ //