neu_val : Neumann values
- Brief description : defines the values of the Neumann conditions in time.
- Additional information : to each defined time the values of the Neumann conditions at the dofs are assigned.
The times must be defined from the smallest to the largest.
A linear trend for the Neumann 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 : 11
- Parameters to be set :
| NAME |
TYPE |
DESCRIPTION |
UM |
NEU_TIME[N_TIME_NEU] |
real |
times in which Dirichlet conditions are defined |
\(time\) |
NEUX[N_TIME_NEU,NNEUX] |
real |
values of the Dirichlet conditions on X dofs |
\(force\) |
NEUY[N_TIME_NEU,NNEUY] |
real |
values of the Dirichlet conditions on Y dofs |
\(force\) |
NEUZ[N_TIME_NEU,NNEUZ] |
real |
values of the Dirichlet conditions on Z dofs |
\(force\) |
NEU_TIME[1] TIME
NEUX[1,NNEUX]
NEUY[1,NNEUY]
NEUZ[1,NNEUZ]
NEU_TIME[2] TIME
NEUX[2,NNEUX]
NEUY[2,NNEUY]
NEUZ[2,NNEUZ]
...
- Example [zero Neumann nodes] : this example defines zero Neumann boundary conditions from
TIME = 0.0 to TIME = 1.e20 :
0.000000000000E+00 TIME
0.100000000000E+21 TIME