Line data    Source code

       1              : ! ***********************************************************************
       2              : !
       3              : !   Copyright (C) 2019  The MESA Team
       4              : !
       5              : !   This program is free software: you can redistribute it and/or modify
       6              : !   it under the terms of the GNU Lesser General Public License
       7              : !   as published by the Free Software Foundation,
       8              : !   either version 3 of the License, or (at your option) any later version.
       9              : !
      10              : !   This program is distributed in the hope that it will be useful,
      11              : !   but WITHOUT ANY WARRANTY; without even the implied warranty of
      12              : !   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
      13              : !   See the GNU Lesser General Public License for more details.
      14              : !
      15              : !   You should have received a copy of the GNU Lesser General Public License
      16              : !   along with this program. If not, see <https://www.gnu.org/licenses/>.
      17              : !
      18              : ! ***********************************************************************
      19              : 
      20              : module other_momentum_implicit
      21              : 
      22              :    ! consult star/other/README for general usage instructions
      23              :    ! control name: use_other_momentum_implicit = .true.
      24              :    ! procedure pointer: s% other_momentum_implicit => my_routine
      25              : 
      26              :    implicit none
      27              : 
      28              : contains
      29              : 
      30            0 :    subroutine default_other_momentum_implicit(id, ierr)
      31              :       use star_def
      32              :       integer, intent(in) :: id
      33              :       integer, intent(out) :: ierr
      34              :       type(star_info), pointer :: s
      35              :       ierr = 0
      36            0 :       call star_ptr(id, s, ierr)
      37            0 :       if (ierr /= 0) return
      38              :       ! s% extra_grav(1:s%nz) = 0 ! this is added to -G*m/r^2
      39              :       ! note that extra_grav is type(auto_diff_real_star_order1) so includes partials.
      40            0 :    end subroutine default_other_momentum_implicit
      41              : 
      42              : end module other_momentum_implicit
      43              :