dir_val : Dirichelt values

  • Brief description : defines the values of the Dirichlet conditions in time.
  • Additional information : to each defined time the values of the Dirichlet conditions at the dofs are assigned. The times must be defined from the smallest to the largest. A linear trend for the Dirichlet values is assumed between two consecutive times: at least two times must be present in the file.
  • File type : fromatted ASCII In Fortran language, the formats for the header and a row of the bulk are '(e20.12,a5)' and '(e25.12)', respectively.
  • Index of the file path in ATLAS.fnames : 9
  • Parameters to be set :
NAME TYPE DESCRIPTION UM
DIR_TIME[N_TIME_DIR] real times in which Dirichlet conditions are defined \(time\)
DIRX[N_TIME_DIR,NDIRX] real values of the Dirichlet conditions on X dofs \(length\)
DIRY[N_TIME_DIR,NDIRY] real values of the Dirichlet conditions on Y dofs \(length\)
DIRZ[N_TIME_DIR,NDIRZ] real values of the Dirichlet conditions on Z dofs \(length\)
  • File structure :
DIR_TIME[1] TIME
DIRX[1,NDIRX]
DIRY[1,NDIRY]
DIRZ[1,NDIRZ]
DIR_TIME[2] TIME
DIRX[2,NDIRX]
DIRY[2,NDIRY]
DIRZ[2,NDIRZ]
...
  • Example [null displacements] : this example imposes null displacements at the Dirichlet nodes from TIME = 0.0 to TIME = 1.e20 :
  0.000000000000E+00 TIME
       0.000000000000E+00
       0.000000000000E+00
       0.000000000000E+00
                      ...
  0.100000000000E+21 TIME
       0.000000000000E+00
       0.000000000000E+00
       0.000000000000E+00        
                      ...