[deal.II] Re: Convergence rate when the analytical solution is unknown

Thank you so much! I'll try doing that. On Friday, June 4, 2021 at 2:07:52 PM UTC-7 mafe...@gmail.com wrote: > And for the time dependent part: I would suggest to store the solution and > time for each time step in some sort of container. You could create a > `FEFieldFunction` representation fo

[deal.II] Re: Convergence rate when the analytical solution is unknown

And for the time dependent part: I would suggest to store the solution and time for each time step in some sort of container. You could create a `FEFieldFunction` representation for these solutions, and then use linear interpolation between two time steps. Depending on how fine your resolution

[deal.II] Re: Convergence rate when the analytical solution is unknown

Hello Naren! you can use the `FEFieldFunction` class for this purpose. It will interpret your finite element solution as a continuous function via interpolation. You can use it as a representation of your

[deal.II] Re: Convergence rate

Thanks for your answer ! I'm working in 2D on a disk ! This is my mesh on the 4 cycle of refinement (which I never use in practice because it's not refined enough for what I want to do). I don't think I have a mapping object... What i do to initalize my system on phi is : //On génère le dofhan

[deal.II] Re: Convergence rate

A quick question, since you are working on a sphere, are you specifying a mapping of the same order as your phi? On Wednesday, 9 October 2019 08:57:45 UTC-4, Félix Bunel wrote: > > Hello everyone. > > I'm having some trouble to understand the convergence rate i'm observing > in my code. > > Here