Step-3 Tutorials : Trying to use bessel function as a boundary dirichlet value

[pushkar...@gmail.com]

Dear deal.II Community,

In my attempt to learn this library  I was working with step-3 tutorials where I wish to change my dirichlet boundary function to a bessel function instead of zero function but I ended up with a issue in visualization where I am not able to see any variation  on the mesh but I am able to run the program successfully.I have added the following code :

 Point<2> center(1.5,1.5);

 Functions::Bessel1<2> bessel(1,2.5,center);

VectorTools::interpolate_boundary_values (dof_handler,
                                            0,
                                            bessel,
                                            boundary_values);

Although I may be wrong conceptually at various places and I look forward to any help in this context as my goal with this exercise  to just change the homogeneous boundary condition to inhomogeneous one.

Thankfully

Pushkar

[Pushkar Pandit]

Well I did resolved the above issue by changing the center to a point that lies on the boundary.

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