Re: [deal.II] Interest in a step-12-like DG tutorial but for the advection-diffusion equation?

2020-07-10 Thread Timo Heister
> where the FEInterfaceValues which is now included in ScratchData Yes, I was going to suggest using that after step-12. > Ps: I am planning to extend FEInterfaceValues to be able to extract function > values and gradients, so that it can also be used easily with the automatic >

Re: [deal.II] Interest in a step-12-like DG tutorial but for the advection-diffusion equation?

2020-07-10 Thread luca.heltai
If you want to take some more inspiration using mesh_loop, ScratchData, and FEInterfaceData, you could take a look at this: https://github.com/dealii/dealii/blob/master/tests/meshworker/scratch_data_08.cc where the FEInterfaceValues which is now included in ScratchData is used to solve SIPG on

Re: [deal.II] Interest in a step-12-like DG tutorial but for the advection-diffusion equation?

2020-07-10 Thread Bruno Blais
Dear Timo, A step-12-like version of Step-39 for the Laplace equation would be very interesting. I would be glad to help on making one of those. The same could be said about the Stokes equations. Ideally, once that is done, i would like to try and make one for stabilized Navier-Stokes for both

Re: [deal.II] Interest in a step-12-like DG tutorial but for the advection-diffusion equation?

2020-07-10 Thread Wolfgang Bangerth
Bruno, I really enjoy the way step-12 is written, especially because of the use of the FEInterfaceValue class. In my opinion it makes low level stuff very easily accessible, yet it is relatively easy to understand. However, I am under the impression that there are no similar test for

Re: [deal.II] Interest in a step-12-like DG tutorial but for the advection-diffusion equation?

2020-07-10 Thread Timo Heister
Hi Bruno, I introduced FEInterfaceValues because I was frustrated by the lack of DG examples and as a consequence DG users in the community and I realized that a more intuitive way to teach it was necessary. Of course we need more than 1 or 2 examples to do that. I have a lot of unfinished stuff

[deal.II] Interest in a step-12-like DG tutorial but for the advection-diffusion equation?

2020-07-09 Thread Bruno Blais
Dear all, I hope you are well. I have been playing with the DG methods within deal.II lately (which has been lots of fun). I really enjoy the way step-12 is written, especially because of the use of the FEInterfaceValue class. In my opinion it makes low level stuff very easily accessible, yet