Hello
I am trying to extend step-18 to a runtime program.
To this end, I generate a triangulation made of several
generate_from_name_and_arguments and merged them.
then I assigned locus of various boundary id to that merged triangulation
(obviously only at-boundary faces).
Now I would like to apply non-homogeneous Dirichlet boundary values to each
boundary id through looping over boundary ids and using
VectorTools::interpolate_boundary_values.
As follow:
for (unsigned int i=0;i<=Number_of_DBC;i++)
{
VectorTools::interpolate_boundary_values(
dof_handler,
i,
IncrementalBoundaryValues<dim>(present_time, present_timestep),
boundary_values);
}
And modifying IncrementalBoundaryValues<dim>::vector_value to this:
template <int dim>
void
IncrementalBoundaryValues<dim>::vector_value(const Point<dim> & /*p*/,
Vector<double> &values) const
{
AssertDimension(values.size(), dim);
std::vector<double> Displacement_Magnitude_Factor (3,0);
for (int k=0;k<3;k++)
{
double disp_mag_factor;
std::cout<< "Please Enter component "<<k+1<<" of Displacement Magnitude
Factor for Boundary id= "
//<< boundary_id
<<std::endl;
std::cin>> disp_mag_factor;
Displacement_Magnitude_Factor[k]=disp_mag_factor;
}
values (0)=Displacement_Magnitude_Factor[0] * present_timestep * velocity;
values (1)=Displacement_Magnitude_Factor[1]*present_timestep * velocity;
values (2)=Displacement_Magnitude_Factor[2]*present_timestep * velocity; }
But it seems that my program enter an infinite loop.
In summary, how I can set non-homogeneous Dirichlet boundary condition with
user-defined vector <dim> during runtime?
I'm stuck in this part. unfortunately compiler does not alert any problem.
I tried to find a solution on group but I couldn't find anything in this
matter.
Only this seems similar to my problem:
https://groups.google.com/g/dealii/c/YFEhCYA5gsY/m/q7ZT5IKZ5owJ
But, unfortunately I couldn't understand.
I would appreciate any help.
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