Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #include "GeneralizedCircumference.h"
      11             : 
      12             : registerMooseObject("ThermalHydraulicsApp", GeneralizedCircumference);
      13             : 
      14             : InputParameters
      15         702 : GeneralizedCircumference::validParams()
      16             : {
      17         702 :   InputParameters params = Function::validParams();
      18        1404 :   params.addRequiredParam<FunctionName>("area_function", "function to compute the cross section");
      19         702 :   params.addClassDescription("Computes a generalized circumference from a function "
      20             :                              "providing the area.");
      21         702 :   return params;
      22           0 : }
      23             : 
      24         382 : GeneralizedCircumference::GeneralizedCircumference(const InputParameters & parameters)
      25         382 :   : Function(parameters), FunctionInterface(this), _area_func(getFunction("area_function"))
      26             : {
      27         382 : }
      28             : 
      29             : Real
      30       33760 : GeneralizedCircumference::value(Real t, const Point & p) const
      31             : {
      32       33760 :   RealVectorValue gradA = _area_func.gradient(t, p);
      33       33760 :   Real dAdx2 = gradA(0) * gradA(0);
      34             : 
      35             :   // Here, we assume a flow channel with circular cross section.
      36       33760 :   return std::sqrt(4. * libMesh::pi * _area_func.value(t, p) + dAdx2);
      37             : }
      38             : 
      39             : RealVectorValue
      40           0 : GeneralizedCircumference::gradient(Real /*t*/, const Point & /*p*/) const
      41             : {
      42           0 :   mooseError(name(), ": ", __PRETTY_FUNCTION__, " is not implemented.");
      43             : }