https://mooseframework.inl.gov
Classes | Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | Protected Member Functions | Protected Attributes | List of all members
FourierNoise Class Referenceabstract

Generate noise using random fourier series coefficients. More...

#include <FourierNoise.h>

Inheritance diagram for FourierNoise:
[legend]

Classes

struct  SeriesItem
 

Public Types

typedef DataFileName DataFileParameterType
 
typedef FunctorBase< Real > FunctorType
 
typedef Real ValueType
 
typedef typename FunctorReturnType< Real, FunctorEvaluationKind::Gradient >::type GradientType
 
typedef ValueType DotType
 

Public Member Functions

 FourierNoise (const InputParameters &parameters)
 
virtual Real value (Real, const Point &p) const override
 
virtual ADReal value (const ADReal &, const ADPoint &p) const override
 
virtual Real value (Real t, const Point &p) const
 
virtual ADReal value (const ADReal &t, const ADPoint &p) const
 
ChainedReal value (const ChainedReal &t) const
 
auto value (const U &t) const
 
auto value (const U &t, const U &x, const U &y=0, const U &z=0) const
 
ChainedReal value (const ChainedReal &t) const
 
auto value (const U &t) const
 
auto value (const U &t, const U &x, const U &y=0, const U &z=0) const
 
ChainedReal value (const ChainedReal &t) const
 
auto value (const U &t) const
 
auto value (const U &t, const U &x, const U &y=0, const U &z=0) const
 
virtual RealVectorValue vectorValue (Real t, const Point &p) const
 
virtual RealVectorValue curl (Real t, const Point &p) const
 
virtual Real div (Real t, const Point &p) const
 
virtual RealGradient gradient (Real t, const Point &p) const
 
GradientType gradient (const ElemArg &elem, const StateArg &state) const
 
GradientType gradient (const FaceArg &face, const StateArg &state) const
 
GradientType gradient (const ElemQpArg &qp, const StateArg &state) const
 
GradientType gradient (const ElemSideQpArg &qp, const StateArg &state) const
 
GradientType gradient (const ElemPointArg &elem_point, const StateArg &state) const
 
GradientType gradient (const NodeArg &node, const StateArg &state) const
 
GradientType gradient (const ElemArg &elem, const StateArg &state) const
 
GradientType gradient (const FaceArg &face, const StateArg &state) const
 
GradientType gradient (const ElemQpArg &qp, const StateArg &state) const
 
GradientType gradient (const ElemSideQpArg &qp, const StateArg &state) const
 
GradientType gradient (const ElemPointArg &elem_point, const StateArg &state) const
 
GradientType gradient (const NodeArg &node, const StateArg &state) const
 
GradientType gradient (const ElemArg &elem, const StateArg &state) const
 
GradientType gradient (const FaceArg &face, const StateArg &state) const
 
GradientType gradient (const ElemQpArg &qp, const StateArg &state) const
 
GradientType gradient (const ElemSideQpArg &qp, const StateArg &state) const
 
GradientType gradient (const ElemPointArg &elem_point, const StateArg &state) const
 
GradientType gradient (const NodeArg &node, const StateArg &state) const
 
virtual Real timeDerivative (Real t, const Point &p) const
 
auto timeDerivative (const U &t) const
 
auto timeDerivative (const U &t, const U &x, const U &y=0, const U &z=0) const
 
auto timeDerivative (const U &t) const
 
auto timeDerivative (const U &t, const U &x, const U &y=0, const U &z=0) const
 
virtual Real integral () const
 
virtual Real average () const
 
virtual Real timeIntegral (Real t1, Real t2, const Point &p) const
 
void timestepSetup () override
 
void residualSetup () override final
 
void jacobianSetup () override final
 
void customSetup (const ExecFlagType &exec_type) override final
 
bool hasBlocks (SubdomainID) const override
 
bool supportsFaceArg () const override final
 
bool supportsElemSideQpArg () const override final
 
virtual bool enabled () const
 
std::shared_ptr< MooseObject > getSharedPtr ()
 
std::shared_ptr< const MooseObject > getSharedPtr () const
 
MooseApp & getMooseApp () const
 
const std::string & type () const
 
virtual const std::string & name () const
 
std::string typeAndName () const
 
std::string errorPrefix (const std::string &error_type) const
 
void callMooseError (std::string msg, const bool with_prefix) const
 
MooseObjectParameterName uniqueParameterName (const std::string &parameter_name) const
 
const InputParameters & parameters () const
 
MooseObjectName uniqueName () const
 
const T & getParam (const std::string &name) const
 
std::vector< std::pair< T1, T2 > > getParam (const std::string &param1, const std::string &param2) const
 
const T * queryParam (const std::string &name) const
 
const T & getRenamedParam (const std::string &old_name, const std::string &new_name) const
 
T getCheckedPointerParam (const std::string &name, const std::string &error_string="") const
 
bool isParamValid (const std::string &name) const
 
bool isParamSetByUser (const std::string &nm) const
 
void paramError (const std::string &param, Args... args) const
 
void paramWarning (const std::string &param, Args... args) const
 
void paramInfo (const std::string &param, Args... args) const
 
void connectControllableParams (const std::string &parameter, const std::string &object_type, const std::string &object_name, const std::string &object_parameter) const
 
void mooseError (Args &&... args) const
 
void mooseErrorNonPrefixed (Args &&... args) const
 
void mooseDocumentedError (const std::string &repo_name, const unsigned int issue_num, Args &&... args) const
 
void mooseWarning (Args &&... args) const
 
void mooseWarningNonPrefixed (Args &&... args) const
 
void mooseDeprecated (Args &&... args) const
 
void mooseInfo (Args &&... args) const
 
std::string getDataFileName (const std::string &param) const
 
std::string getDataFileNameByName (const std::string &relative_path) const
 
std::string getDataFilePath (const std::string &relative_path) const
 
virtual void initialSetup ()
 
virtual void subdomainSetup ()
 
const ExecFlagEnum & getExecuteOnEnum () const
 
bool isImplicit ()
 
Moose::StateArg determineState () const
 
bool isDefaultPostprocessorValue (const std::string &param_name, const unsigned int index=0) const
 
bool hasPostprocessor (const std::string &param_name, const unsigned int index=0) const
 
bool hasPostprocessorByName (const PostprocessorName &name) const
 
std::size_t coupledPostprocessors (const std::string &param_name) const
 
const PostprocessorName & getPostprocessorName (const std::string &param_name, const unsigned int index=0) const
 
UserObjectName getUserObjectName (const std::string &param_name) const
 
const T & getUserObject (const std::string &param_name, bool is_dependency=true) const
 
const T & getUserObjectByName (const UserObjectName &object_name, bool is_dependency=true) const
 
const UserObject & getUserObjectBase (const std::string &param_name, bool is_dependency=true) const
 
const UserObject & getUserObjectBaseByName (const UserObjectName &object_name, bool is_dependency=true) const
 
virtual void meshChanged ()
 
const std::vector< MooseVariableScalar *> & getCoupledMooseScalarVars ()
 
const std::set< TagID > & getScalarVariableCoupleableVectorTags () const
 
const std::set< TagID > & getScalarVariableCoupleableMatrixTags () const
 
FunctorReturnType< Real, FET >::type genericEvaluate (const Space &r, const State &state) const
 
const MooseFunctorName & functorName () const
 
void setCacheClearanceSchedule (const std::set< ExecFlagType > &clearance_schedule)
 
virtual bool isExtrapolatedBoundaryFace (const FaceInfo &, const Elem *, const StateArg &) const
 
bool isInternalFace (const FaceInfo &) const
 
virtual bool isConstant () const
 
virtual bool hasFaceSide (const FaceInfo &fi, const bool fi_elem_side) const override
 
void checkFace (const Moose::FaceArg &face) const
 
const PostprocessorValue & getPostprocessorValue (const std::string &param_name, const unsigned int index=0) const
 
const PostprocessorValue & getPostprocessorValue (const std::string &param_name, const unsigned int index=0) const
 
const PostprocessorValue & getPostprocessorValueOld (const std::string &param_name, const unsigned int index=0) const
 
const PostprocessorValue & getPostprocessorValueOld (const std::string &param_name, const unsigned int index=0) const
 
const PostprocessorValue & getPostprocessorValueOlder (const std::string &param_name, const unsigned int index=0) const
 
const PostprocessorValue & getPostprocessorValueOlder (const std::string &param_name, const unsigned int index=0) const
 
virtual const PostprocessorValue & getPostprocessorValueByName (const PostprocessorName &name) const
 
virtual const PostprocessorValue & getPostprocessorValueByName (const PostprocessorName &name) const
 
const PostprocessorValue & getPostprocessorValueOldByName (const PostprocessorName &name) const
 
const PostprocessorValue & getPostprocessorValueOldByName (const PostprocessorName &name) const
 
const PostprocessorValue & getPostprocessorValueOlderByName (const PostprocessorName &name) const
 
const PostprocessorValue & getPostprocessorValueOlderByName (const PostprocessorName &name) const
 
bool hasUserObject (const std::string &param_name) const
 
bool hasUserObject (const std::string &param_name) const
 
bool hasUserObject (const std::string &param_name) const
 
bool hasUserObject (const std::string &param_name) const
 
bool hasUserObjectByName (const UserObjectName &object_name) const
 
bool hasUserObjectByName (const UserObjectName &object_name) const
 
bool hasUserObjectByName (const UserObjectName &object_name) const
 
bool hasUserObjectByName (const UserObjectName &object_name) const
 
ValueType operator() (const ElemArg &elem, const StateArg &state) const
 
ValueType operator() (const FaceArg &face, const StateArg &state) const
 
ValueType operator() (const ElemQpArg &qp, const StateArg &state) const
 
ValueType operator() (const ElemSideQpArg &qp, const StateArg &state) const
 
ValueType operator() (const ElemPointArg &elem_point, const StateArg &state) const
 
ValueType operator() (const NodeArg &node, const StateArg &state) const
 
ValueType operator() (const ElemArg &elem, const StateArg &state) const
 
ValueType operator() (const FaceArg &face, const StateArg &state) const
 
ValueType operator() (const ElemQpArg &qp, const StateArg &state) const
 
ValueType operator() (const ElemSideQpArg &qp, const StateArg &state) const
 
ValueType operator() (const ElemPointArg &elem_point, const StateArg &state) const
 
ValueType operator() (const NodeArg &node, const StateArg &state) const
 
ValueType operator() (const ElemArg &elem, const StateArg &state) const
 
ValueType operator() (const FaceArg &face, const StateArg &state) const
 
ValueType operator() (const ElemQpArg &qp, const StateArg &state) const
 
ValueType operator() (const ElemSideQpArg &qp, const StateArg &state) const
 
ValueType operator() (const ElemPointArg &elem_point, const StateArg &state) const
 
ValueType operator() (const NodeArg &node, const StateArg &state) const
 
DotType dot (const ElemArg &elem, const StateArg &state) const
 
DotType dot (const FaceArg &face, const StateArg &state) const
 
DotType dot (const ElemQpArg &qp, const StateArg &state) const
 
DotType dot (const ElemSideQpArg &qp, const StateArg &state) const
 
DotType dot (const ElemPointArg &elem_point, const StateArg &state) const
 
DotType dot (const NodeArg &node, const StateArg &state) const
 
DotType dot (const ElemArg &elem, const StateArg &state) const
 
DotType dot (const FaceArg &face, const StateArg &state) const
 
DotType dot (const ElemQpArg &qp, const StateArg &state) const
 
DotType dot (const ElemSideQpArg &qp, const StateArg &state) const
 
DotType dot (const ElemPointArg &elem_point, const StateArg &state) const
 
DotType dot (const NodeArg &node, const StateArg &state) const
 
DotType dot (const ElemArg &elem, const StateArg &state) const
 
DotType dot (const FaceArg &face, const StateArg &state) const
 
DotType dot (const ElemQpArg &qp, const StateArg &state) const
 
DotType dot (const ElemSideQpArg &qp, const StateArg &state) const
 
DotType dot (const ElemPointArg &elem_point, const StateArg &state) const
 
DotType dot (const NodeArg &node, const StateArg &state) const
 
GradientType gradDot (const ElemArg &elem, const StateArg &state) const
 
GradientType gradDot (const FaceArg &face, const StateArg &state) const
 
GradientType gradDot (const ElemQpArg &qp, const StateArg &state) const
 
GradientType gradDot (const ElemSideQpArg &qp, const StateArg &state) const
 
GradientType gradDot (const ElemPointArg &elem_point, const StateArg &state) const
 
GradientType gradDot (const NodeArg &node, const StateArg &state) const
 
GradientType gradDot (const ElemArg &elem, const StateArg &state) const
 
GradientType gradDot (const FaceArg &face, const StateArg &state) const
 
GradientType gradDot (const ElemQpArg &qp, const StateArg &state) const
 
GradientType gradDot (const ElemSideQpArg &qp, const StateArg &state) const
 
GradientType gradDot (const ElemPointArg &elem_point, const StateArg &state) const
 
GradientType gradDot (const NodeArg &node, const StateArg &state) const
 
GradientType gradDot (const ElemArg &elem, const StateArg &state) const
 
GradientType gradDot (const FaceArg &face, const StateArg &state) const
 
GradientType gradDot (const ElemQpArg &qp, const StateArg &state) const
 
GradientType gradDot (const ElemSideQpArg &qp, const StateArg &state) const
 
GradientType gradDot (const ElemPointArg &elem_point, const StateArg &state) const
 
GradientType gradDot (const NodeArg &node, const StateArg &state) const
 
const Parallel::Communicator & comm () const
 
processor_id_type n_processors () const
 
processor_id_type processor_id () const
 

Static Public Member Functions

static InputParameters validParams ()
 

Public Attributes

const ConsoleStream _console
 

Protected Member Functions

virtual void addPostprocessorDependencyHelper (const PostprocessorName &) const
 
virtual void addUserObjectDependencyHelper (const UserObject &) const
 
T & declareRestartableData (const std::string &data_name, Args &&... args)
 
ManagedValue< T > declareManagedRestartableDataWithContext (const std::string &data_name, void *context, Args &&... args)
 
const T & getRestartableData (const std::string &data_name) const
 
T & declareRestartableDataWithContext (const std::string &data_name, void *context, Args &&... args)
 
T & declareRecoverableData (const std::string &data_name, Args &&... args)
 
T & declareRestartableDataWithObjectName (const std::string &data_name, const std::string &object_name, Args &&... args)
 
T & declareRestartableDataWithObjectNameWithContext (const std::string &data_name, const std::string &object_name, void *context, Args &&... args)
 
std::string restartableName (const std::string &data_name) const
 
bool isCoupledScalar (const std::string &var_name, unsigned int i=0) const
 
unsigned int coupledScalarComponents (const std::string &var_name) const
 
unsigned int coupledScalar (const std::string &var_name, unsigned int comp=0) const
 
libMesh::Order coupledScalarOrder (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarValue (const std::string &var_name, unsigned int comp=0) const
 
const ADVariableValue & adCoupledScalarValue (const std::string &var_name, unsigned int comp=0) const
 
const GenericVariableValue< is_ad > & coupledGenericScalarValue (const std::string &var_name, unsigned int comp=0) const
 
const GenericVariableValue< false > & coupledGenericScalarValue (const std::string &var_name, const unsigned int comp) const
 
const GenericVariableValue< true > & coupledGenericScalarValue (const std::string &var_name, const unsigned int comp) const
 
const VariableValue & coupledVectorTagScalarValue (const std::string &var_name, TagID tag, unsigned int comp=0) const
 
const VariableValue & coupledMatrixTagScalarValue (const std::string &var_name, TagID tag, unsigned int comp=0) const
 
const VariableValue & coupledScalarValueOld (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarValueOlder (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarDot (const std::string &var_name, unsigned int comp=0) const
 
const ADVariableValue & adCoupledScalarDot (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarDotDot (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarDotOld (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarDotDotOld (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarDotDu (const std::string &var_name, unsigned int comp=0) const
 
const VariableValue & coupledScalarDotDotDu (const std::string &var_name, unsigned int comp=0) const
 
const MooseVariableScalar * getScalarVar (const std::string &var_name, unsigned int comp) const
 
virtual GradientType evaluateGradDot (const ElemArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const FaceArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemSideQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemPointArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const NodeArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const FaceArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemSideQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemPointArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const NodeArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const FaceArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemSideQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const ElemPointArg &, const StateArg &) const
 
virtual GradientType evaluateGradDot (const NodeArg &, const StateArg &) const
 
virtual ValueType evaluate (const ElemArg &elem, const StateArg &state) const =0
 
virtual ValueType evaluate (const FaceArg &face, const StateArg &state) const =0
 
virtual ValueType evaluate (const ElemQpArg &qp, const StateArg &state) const =0
 
virtual ValueType evaluate (const ElemSideQpArg &side_qp, const StateArg &state) const =0
 
virtual ValueType evaluate (const ElemPointArg &elem_point, const StateArg &state) const =0
 
virtual ValueType evaluate (const NodeArg &node, const StateArg &state) const =0
 
virtual GradientType evaluateGradient (const ElemArg &, const StateArg &) const
 
virtual GradientType evaluateGradient (const FaceArg &, const StateArg &) const
 
virtual GradientType evaluateGradient (const ElemQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradient (const ElemSideQpArg &, const StateArg &) const
 
virtual GradientType evaluateGradient (const ElemPointArg &, const StateArg &) const
 
virtual GradientType evaluateGradient (const NodeArg &, const StateArg &) const
 
virtual DotType evaluateDot (const ElemArg &, const StateArg &) const
 
virtual DotType evaluateDot (const FaceArg &, const StateArg &) const
 
virtual DotType evaluateDot (const ElemQpArg &, const StateArg &) const
 
virtual DotType evaluateDot (const ElemSideQpArg &, const StateArg &) const
 
virtual DotType evaluateDot (const ElemPointArg &, const StateArg &) const
 
virtual DotType evaluateDot (const NodeArg &, const StateArg &) const
 

Protected Attributes

const Real _lambda
 selected lower lengthscale for the noise cut-off More...
 
std::vector< SeriesItem > _series
 Fourier series terms. More...
 
Real _scale
 amplitude factor More...
 
FEProblemBase & _fe_problem
 FEProblem pointer for obtaining the current mesh. More...
 
const bool & _enabled
 
MooseApp & _app
 
const std::string _type
 
const std::string _name
 
const InputParameters & _pars
 
Factory & _factory
 
ActionFactory & _action_factory
 
const ExecFlagEnum & _execute_enum
 
const ExecFlagType & _current_execute_flag
 
const InputParameters & _ti_params
 
FEProblemBase & _ti_feproblem
 
bool _is_implicit
 
Real & _t
 
const Real & _t_old
 
int & _t_step
 
Real & _dt
 
Real & _dt_old
 
bool _is_transient
 
MooseApp & _restartable_app
 
const std::string _restartable_system_name
 
const THREAD_ID _restartable_tid
 
const bool _restartable_read_only
 
FEProblemBase & _mci_feproblem
 
FEProblemBase & _sc_fe_problem
 
const THREAD_ID _sc_tid
 
const Real & _real_zero
 
const VariableValue & _scalar_zero
 
const Point & _point_zero
 
const Parallel::Communicator & _communicator
 

Detailed Description

Generate noise using random fourier series coefficients.

Definition at line 19 of file FourierNoise.h.

Constructor & Destructor Documentation

◆ FourierNoise()

FourierNoise::FourierNoise ( const InputParameters &  parameters)

Definition at line 32 of file FourierNoise.C.

33  : Function(parameters),
34  _lambda(getParam<Real>("lambda")),
35  _fe_problem(*getCheckedPointerParam<FEProblemBase *>("_fe_problem_base"))
36 {
37  MooseRandom rng;
38  rng.seed(0, getParam<unsigned int>("seed"));
39 
40  if (isParamValid("num_terms"))
41  {
42  // random terms
43  _series.resize(getParam<unsigned int>("num_terms"));
44  const Real scale = 2.0 * (2.0 * libMesh::pi) / _lambda;
45 
46  // check
47  if (_series.empty())
48  paramError("num_terms",
49  "If specifying the number of terms, supply a number greater than zero.");
50 
51  // fill terms
52  for (auto & f : _series)
53  {
54  // get a vector with length <= 0.5
55  Real r2;
56  do
57  {
58  const Real x = rng.rand(0) - 0.5;
59  const Real y = rng.rand(0) - 0.5;
60  f.k = RealVectorValue(x, y, 0.0);
61  r2 = f.k.norm_sq();
62  } while (r2 > 0.25);
63 
64  // scale maximum to a wavelength of lambda
65  f.k *= scale;
66 
67  f.c = rng.randNormal(0, 0.0, 1.0);
68  f.s = rng.randNormal(0, 0.0, 1.0);
69  }
70  }
71  else
72  {
73  // k-space grid resulting in periodic noise
74  MooseMesh & mesh = _fe_problem.mesh();
75  if (!mesh.isRegularOrthogonal())
76  mooseError("Periodic Fourier Noise requires a regular orthogonal mesh.");
77 
78  const Real dx = 2.0 * libMesh::pi / mesh.dimensionWidth(0);
79  const Real dy = 2.0 * libMesh::pi / mesh.dimensionWidth(1);
80  const Real rmax = 2.0 * libMesh::pi / _lambda;
81 
82  const int xmax = rmax / dx;
83  const int ymax = rmax / dy;
84 
85  const Real rmax2 = rmax * rmax;
86  for (int x = 0; x < xmax; ++x)
87  for (int y = -ymax; y < ymax; ++y)
88  if (x > 0 || y > 0)
89  {
90  SeriesItem f;
91  f.k = RealVectorValue(x * dx, y * dy, 0.0);
92  if (f.k.norm_sq() <= rmax2)
93  {
94  f.c = rng.randNormal(0, 0.0, 1.0);
95  f.s = rng.randNormal(0, 0.0, 1.0);
96  _series.push_back(f);
97  }
98  }
99  }
100 
101  _scale = std::sqrt(1.0 / _series.size());
102 }
FourierNoise::_fe_problem
FEProblemBase & _fe_problem
FEProblem pointer for obtaining the current mesh.
Definition: FourierNoise.h:51
MooseMesh
scale
void scale(MeshBase &mesh, const Real xs, const Real ys=0., const Real zs=0.)
MooseRandom::seed
void seed(std::size_t i, unsigned int seed)
mesh
MeshBase & mesh
y
const std::vector< double > y
Definition: EquilibriumConstantFitTest.C:18
MooseRandom::randNormal
Real randNormal(std::size_t i, Real mean, Real sigma)
Function::Function
Function(const InputParameters &parameters)
Function::isParamValid
bool isParamValid(const std::string &name) const
FourierNoise::_lambda
const Real _lambda
selected lower lengthscale for the noise cut-off
Definition: FourierNoise.h:42
x
const std::vector< double > x
Definition: EquilibriumConstantFitTest.C:17
f
Real f(Real x)
Test function for Brents method.
Definition: BrentsMethodTest.C:21
FourierNoise::_series
std::vector< SeriesItem > _series
Fourier series terms.
Definition: FourierNoise.h:45
Function::paramError
void paramError(const std::string &param, Args... args) const
Real
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
FourierNoise::_scale
Real _scale
amplitude factor
Definition: FourierNoise.h:48
FEProblemBase::mesh
virtual MooseMesh & mesh() override
Function::mooseError
void mooseError(Args &&... args) const
Function::parameters
const InputParameters & parameters() const
MooseRandom::rand
Real rand(std::size_t i)
libMesh::pi
const Real pi

Member Function Documentation

◆ validParams()

InputParameters FourierNoise::validParams ( )
static

Definition at line 18 of file FourierNoise.C.

19 {
20  InputParameters params = Function::validParams();
21  params.addClassDescription("Generate noise from a fourier series");
22  params.addRequiredParam<Real>("lambda",
23  "Wavelength cut off (set to about twice the interfacial width)");
24  params.addParam<unsigned int>(
25  "num_terms",
26  "Number of random fourier series terms (this will result in non-periodic noise). Omit this "
27  "parameter to obtain a periodic noise distribution.");
28  params.addParam<unsigned int>("seed", 12455, "Random number generator seed");
29  return params;
30 }
InputParameters::addParam
void addParam(const std::string &name, const std::initializer_list< typename T::value_type > &value, const std::string &doc_string)
InputParameters::addRequiredParam
void addRequiredParam(const std::string &name, const std::string &doc_string)
Real
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
InputParameters::addClassDescription
void addClassDescription(const std::string &doc_string)
Function::validParams
static InputParameters validParams()

◆ value() [1/10]

auto Function::value

◆ value() [2/10]

virtual ADReal Function::value

◆ value() [3/10]

auto Function::value

◆ value() [4/10]

ChainedReal Function::value

◆ value() [5/10]

ChainedReal Function::value

◆ value() [6/10]

auto Function::value

◆ value() [7/10]

virtual Real Function::value

◆ value() [8/10]

auto Function::value

◆ value() [9/10]

Real FourierNoise::value ( Real  ,
const Point &  p 
) const
overridevirtual

Reimplemented from Function.

Definition at line 105 of file FourierNoise.C.

106 {
107  Real v = 0.0;
108  for (const auto & f : _series)
109  v += f.s * std::sin(p * f.k) + f.c * std::cos(p * f.k);
110  return v * _scale;
111 }
f
Real f(Real x)
Test function for Brents method.
Definition: BrentsMethodTest.C:21
FourierNoise::_series
std::vector< SeriesItem > _series
Fourier series terms.
Definition: FourierNoise.h:45
Real
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
NS::v
static const std::string v
Definition: NS.h:84
FourierNoise::_scale
Real _scale
amplitude factor
Definition: FourierNoise.h:48

◆ value() [10/10]

ADReal FourierNoise::value ( const ADReal &  ,
const ADPoint &  p 
) const
overridevirtual

Reimplemented from Function.

Definition at line 114 of file FourierNoise.C.

115 {
116  ADReal v = 0.0;
117  for (const auto & f : _series)
118  v += f.s * std::sin(p * f.k) + f.c * std::cos(p * f.k);
119  return v * _scale;
120 }
ADReal
DualNumber< Real, DNDerivativeType, true > ADReal
f
Real f(Real x)
Test function for Brents method.
Definition: BrentsMethodTest.C:21
FourierNoise::_series
std::vector< SeriesItem > _series
Fourier series terms.
Definition: FourierNoise.h:45
NS::v
static const std::string v
Definition: NS.h:84
FourierNoise::_scale
Real _scale
amplitude factor
Definition: FourierNoise.h:48

Member Data Documentation

◆ _fe_problem

FEProblemBase& FourierNoise::_fe_problem
protected

FEProblem pointer for obtaining the current mesh.

Definition at line 51 of file FourierNoise.h.

Referenced by FourierNoise().

◆ _lambda

const Real FourierNoise::_lambda
protected

selected lower lengthscale for the noise cut-off

Definition at line 42 of file FourierNoise.h.

Referenced by FourierNoise().

◆ _scale

Real FourierNoise::_scale
protected

amplitude factor

Definition at line 48 of file FourierNoise.h.

Referenced by FourierNoise(), and value().

◆ _series

std::vector<SeriesItem> FourierNoise::_series
protected

Fourier series terms.

Definition at line 45 of file FourierNoise.h.

Referenced by FourierNoise(), and value().

The documentation for this class was generated from the following files:
Generated on Fri Jul 18 2025 12:00:55 for https://mooseframework.inl.gov by   doxygen 1.8.14