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BoundingValueElementDamper.C
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9 
11 
13 
16 {
18  params.addClassDescription("This class implements a damper that limits the value of a variable "
19  "to be within user-specified bounds.");
20  params.addParam<Real>("max_value",
22  "The maximum permissible iterative value for the variable.");
23  params.addParam<Real>("min_value",
24  std::numeric_limits<Real>::lowest(),
25  "The minimum permissible iterative value for the variable.");
26  return params;
27 }
28 
30  : ElementDamper(parameters),
31  _max_value(parameters.get<Real>("max_value")),
32  _min_value(parameters.get<Real>("min_value"))
33 {
34  if (_min_value > _max_value)
35  mooseError("max_value must be greater than min_value");
36 }
37 
38 Real
40 {
41  // Note that _u_increment contains the negative of the increment
42  if (_u[_qp] < _min_value)
43  return 1.0 - (_u[_qp] - _min_value) / -_u_increment[_qp];
44  else if (_u[_qp] > _max_value)
45  return 1.0 - (_u[_qp] - _max_value) / -_u_increment[_qp];
46 
47  return 1.0;
48 }
const Real & _min_value
The minimum permissible value of the variable.
static InputParameters validParams()
Definition: ElementDamper.C:22
const VariableValue & _u
Holds the current solution at the current quadrature point.
Definition: ElementDamper.h:78
unsigned int _qp
Quadrature point index.
Definition: ElementDamper.h:67
T * get(const std::unique_ptr< T > &u)
The MooseUtils::get() specializations are used to support making forwards-compatible code changes fro...
Definition: MooseUtils.h:1147
This class implements a damper that limits the value of a variable to be within user-specified bounds...
const VariableValue & _u_increment
The current Newton increment.
Definition: ElementDamper.h:76
The main MOOSE class responsible for handling user-defined parameters in almost every MOOSE system...
static InputParameters validParams()
auto max(const L &left, const R &right)
const Real & _max_value
The maximum permissible value of the variable.
Base class for deriving element dampers.
Definition: ElementDamper.h:28
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
void mooseError(Args &&... args) const
Emits an error prefixed with object name and type.
void addClassDescription(const std::string &doc_string)
This method adds a description of the class that will be displayed in the input file syntax dump...
virtual Real computeQpDamping() override
Compute the damping for the current qp.
registerMooseObject("MooseApp", BoundingValueElementDamper)
void addParam(const std::string &name, const S &value, const std::string &doc_string)
These methods add an option parameter and a documentation string to the InputParameters object...
BoundingValueElementDamper(const InputParameters &parameters)