randomiseTemplates.C
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25 
26 #include "volFields.H"
27 #include "randomGenerator.H"
28 
29 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
30 
31 template<class Type>
32 bool Foam::functionObjects::randomise::calcRandomised()
33 {
34  if (foundObject<VolField<Type>>(fieldName_))
35  {
36  const VolField<Type>& field = lookupObject<VolField<Type>>(fieldName_);
37 
38  tmp<VolField<Type>> rfieldt(new VolField<Type>(field));
39  VolField<Type>& rfield = rfieldt.ref();
40 
41  randomGenerator rndGen(1234567);
42 
43  forAll(field, celli)
44  {
45  Type rndPert = rndGen.sample01<Type>();
46  rndPert = 2.0*rndPert - pTraits<Type>::one;
47  rndPert /= mag(rndPert);
48  rfield[celli] += magPerturbation_*rndPert;
49  }
50 
51  return store(resultName_, rfieldt);
52  }
53  else
54  {
55  return false;
56  }
57 }
58 
59 
60 // ************************************************************************* //
#define forAll(list, i)
Loop across all elements in list.
Definition: UList.H:434
word resultName_
Name of result field.
const word fieldName_
Name of field to process.
bool foundObject(const word &fieldName) const
Find field in the objectRegistry.
bool store(const tmp< ObjectType > &tfield)
Store the given field in the objectRegistry.
dimensioned< scalar > mag(const dimensioned< Type > &)
randomGenerator rndGen(653213)