virtual Real computeQpIntegral() override
const VariableGradient & _grad_u
Holds the solution gradient at the current quadrature points.
This postprocessor computes a volume integral of the specified variable.
InputParameters validParams< ElementIntegralVariablePostprocessor >()
const VariableValue & _u
Holds the solution at current quadrature points.
This postprocessor computes a volume integral of the specified variable.
static InputParameters validParams()
ElementIntegralVariablePostprocessor(const InputParameters ¶meters)