LCOV - code coverage report
Current view: top level - src/timeintegrators - ExplicitEuler.C (source / functions) Hit Total Coverage
Test: idaholab/moose framework: 2bf808 Lines: 22 28 78.6 %
Date: 2025-07-17 01:28:37 Functions: 5 7 71.4 %
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 "ExplicitEuler.h"
      11             : #include "NonlinearSystem.h"
      12             : #include "FEProblem.h"
      13             : 
      14             : registerMooseObject("MooseApp", ExplicitEuler);
      15             : 
      16             : InputParameters
      17       14616 : ExplicitEuler::validParams()
      18             : {
      19       14616 :   InputParameters params = TimeIntegrator::validParams();
      20       14616 :   params.addClassDescription("Time integration using the explicit Euler method.");
      21       14616 :   return params;
      22           0 : }
      23             : 
      24         234 : ExplicitEuler::ExplicitEuler(const InputParameters & parameters) : TimeIntegrator(parameters) {}
      25             : 
      26             : void
      27        1666 : ExplicitEuler::preSolve()
      28             : {
      29        1666 :   if (_dt == _dt_old)
      30        1666 :     _fe_problem.setConstJacobian(true);
      31             :   else
      32           0 :     _fe_problem.setConstJacobian(false);
      33        1666 : }
      34             : 
      35             : void
      36        6330 : ExplicitEuler::computeTimeDerivatives()
      37             : {
      38        6330 :   if (!_sys.solutionUDot())
      39           0 :     mooseError("ExplicitEuler: Time derivative of solution (`u_dot`) is not stored. Please set "
      40             :                "uDotRequested() to true in FEProblemBase before requesting `u_dot`.");
      41             : 
      42        6330 :   NumericVector<Number> & u_dot = *_sys.solutionUDot();
      43        6330 :   u_dot = *_solution;
      44        6330 :   computeTimeDerivativeHelper(u_dot, _solution_old);
      45        6330 :   u_dot.close();
      46        6330 :   computeDuDotDu();
      47        6330 : }
      48             : 
      49             : void
      50           0 : ExplicitEuler::computeADTimeDerivatives(ADReal & ad_u_dot,
      51             :                                         const dof_id_type & dof,
      52             :                                         ADReal & /*ad_u_dotdot*/) const
      53             : {
      54           0 :   computeTimeDerivativeHelper(ad_u_dot, _solution_old(dof));
      55           0 : }
      56             : 
      57             : void
      58        3017 : ExplicitEuler::postResidual(NumericVector<Number> & residual)
      59             : {
      60        3017 :   residual += *_Re_time;
      61        3017 :   residual += *_Re_non_time;
      62        3017 :   residual.close();
      63        3017 : }

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