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ElementL2Error.C
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9 
10 #include "ElementL2Error.h"
11 #include "Function.h"
12 
14 
17 {
19  params.addRequiredParam<FunctionName>("function", "The analytic solution to compare against");
20  params.addClassDescription(
21  "Computes L2 error between a field variable and an analytical function");
22  return params;
23 }
24 
26  : ElementIntegralVariablePostprocessor(parameters), _func(getFunction("function"))
27 {
28 }
29 
30 Real
32 {
34 }
35 
36 Real
38 {
39  Real diff = _u[_qp] - _func.value(_t, _q_point[_qp]);
40  return diff * diff;
41 }
const Function & _func
const MooseArray< Point > & _q_point
This postprocessor computes a volume integral of the specified variable.
The main MOOSE class responsible for handling user-defined parameters in almost every MOOSE system...
ADRealEigenVector< T, D, asd > sqrt(const ADRealEigenVector< T, D, asd > &)
registerMooseObject("MooseApp", ElementL2Error)
void addRequiredParam(const std::string &name, const std::string &doc_string)
This method adds a parameter and documentation string to the InputParameters object that will be extr...
virtual Real getValue() const override
This will get called to actually grab the final value the postprocessor has calculated.
static InputParameters validParams()
const VariableValue & _u
Holds the solution at current quadrature points.
virtual Real getValue() const override
This will get called to actually grab the final value the postprocessor has calculated.
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
ElementL2Error(const InputParameters &parameters)
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 value(Real t, const Point &p) const
Override this to evaluate the scalar function at point (t,x,y,z), by default this returns zero...
Definition: Function.C:41
virtual Real computeQpIntegral() override