LCOV - code coverage report
Current view: top level - src/base - WallFrictionModels.C (source / functions) Hit Total Coverage
Test: idaholab/moose thermal_hydraulics: #30301 (3b550b) with base 2ad78d Lines: 14 14 100.0 %
Date: 2025-07-30 13:02:48 Functions: 4 4 100.0 %
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 "WallFrictionModels.h"
      11             : #include "Numerics.h"
      12             : #include "ADReal.h"
      13             : 
      14             : namespace WallFriction
      15             : {
      16             : 
      17             : Real
      18         123 : DarcyFrictionFactor(const Real & f_F)
      19             : {
      20         123 :   return 4 * f_F;
      21             : }
      22             : 
      23             : ADReal
      24     1888287 : DarcyFrictionFactor(const ADReal & f_F)
      25             : {
      26     1888287 :   return 4 * f_F;
      27             : }
      28             : 
      29             : Real
      30         124 : FanningFrictionFactorChurchill(Real Re, Real roughness, Real Dh)
      31             : {
      32         124 :   Real Re_limit = std::max(Re, 10.0);
      33             : 
      34             :   Real a =
      35         124 :       std::pow(2.457 * std::log(1.0 / (std::pow(7.0 / Re_limit, 0.9) + 0.27 * roughness / Dh)), 16);
      36         124 :   Real b = std::pow(3.753e4 / Re_limit, 16);
      37         124 :   return 2.0 * std::pow(std::pow(8.0 / Re_limit, 12) + 1.0 / std::pow(a + b, 1.5), 1.0 / 12.0);
      38             : }
      39             : 
      40             : ADReal
      41     1883782 : FanningFrictionFactorChurchill(ADReal Re, ADReal roughness, ADReal Dh)
      42             : {
      43     1883782 :   ADReal Re_limit = std::max(Re, 10.0);
      44             : 
      45             :   ADReal a =
      46    11302692 :       std::pow(2.457 * std::log(1.0 / (std::pow(7.0 / Re_limit, 0.9) + 0.27 * roughness / Dh)), 16);
      47     3767564 :   ADReal b = std::pow(3.753e4 / Re_limit, 16);
      48    11302692 :   return 2.0 * std::pow(std::pow(8.0 / Re_limit, 12) + 1.0 / std::pow(a + b, 1.5), 1.0 / 12.0);
      49             : }
      50             : }

Generated by: LCOV version 1.14