LCOV - code coverage report
Current view: top level - src/materials - WallHeatTransferCoefficient3EqnDittusBoelterMaterial.C (source / functions) Hit Total Coverage
Test: idaholab/moose thermal_hydraulics: #30301 (3b550b) with base 2ad78d Lines: 32 33 97.0 %
Date: 2025-07-30 13:02:48 Functions: 3 3 100.0 %
Legend: Lines: hit not hit

          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 "WallHeatTransferCoefficient3EqnDittusBoelterMaterial.h"
      11             : #include "SinglePhaseFluidProperties.h"
      12             : #include "FlowModelSinglePhase.h"
      13             : #include "Numerics.h"
      14             : 
      15             : registerMooseObject("ThermalHydraulicsApp", WallHeatTransferCoefficient3EqnDittusBoelterMaterial);
      16             : 
      17             : InputParameters
      18         170 : WallHeatTransferCoefficient3EqnDittusBoelterMaterial::validParams()
      19             : {
      20         170 :   InputParameters params = Material::validParams();
      21         340 :   params.addParam<MaterialPropertyName>("Hw",
      22             :                                         FlowModelSinglePhase::HEAT_TRANSFER_COEFFICIENT_WALL,
      23             :                                         "Heat transfer coefficient material property");
      24         340 :   params.addRequiredParam<MaterialPropertyName>("rho", "Density of the liquid");
      25         340 :   params.addRequiredParam<MaterialPropertyName>("vel", "x-component of the liquid velocity");
      26         340 :   params.addRequiredParam<MaterialPropertyName>("D_h", "Hydraulic diameter");
      27         340 :   params.addRequiredParam<MaterialPropertyName>("cp", "Specific heat of the fluid");
      28         340 :   params.addRequiredParam<MaterialPropertyName>("mu", "Dynamic viscosity of the fluid");
      29         340 :   params.addRequiredParam<MaterialPropertyName>("k", "Heat conductivity of the fluid");
      30         340 :   params.addRequiredParam<MaterialPropertyName>("T", "Fluid temperature");
      31         340 :   params.addRequiredParam<MaterialPropertyName>("T_wall", "Wall temperature");
      32         170 :   params.addClassDescription(
      33             :       "Computes wall heat transfer coefficient using Dittus-Boelter equation");
      34         170 :   return params;
      35           0 : }
      36             : 
      37         132 : WallHeatTransferCoefficient3EqnDittusBoelterMaterial::
      38         132 :     WallHeatTransferCoefficient3EqnDittusBoelterMaterial(const InputParameters & parameters)
      39             :   : Material(parameters),
      40         132 :     _Hw(declareProperty<Real>("Hw")),
      41         264 :     _rho(getMaterialProperty<Real>("rho")),
      42         264 :     _vel(getMaterialProperty<Real>("vel")),
      43         264 :     _D_h(getMaterialProperty<Real>("D_h")),
      44         264 :     _k(getMaterialProperty<Real>("k")),
      45         264 :     _mu(getMaterialProperty<Real>("mu")),
      46         264 :     _cp(getMaterialProperty<Real>("cp")),
      47         264 :     _T(getMaterialProperty<Real>("T")),
      48         396 :     _T_wall(getMaterialProperty<Real>("T_wall"))
      49             : {
      50         132 : }
      51             : 
      52             : void
      53         108 : WallHeatTransferCoefficient3EqnDittusBoelterMaterial::computeQpProperties()
      54             : {
      55         108 :   Real Pr = THM::Prandtl(_cp[_qp], _mu[_qp], _k[_qp]);
      56         108 :   Real Re = THM::Reynolds(1., _rho[_qp], _vel[_qp], _D_h[_qp], _mu[_qp]);
      57         108 :   Real n = (_T[_qp] < _T_wall[_qp]) ? 0.4 : 0.3;
      58         108 :   Real Nu = 0.023 * std::pow(Re, 4. / 5.) * std::pow(Pr, n);
      59             : 
      60         108 :   _Hw[_qp] = THM::wallHeatTransferCoefficient(Nu, _k[_qp], _D_h[_qp]);
      61         108 : }

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