Re: [deal.II] time dependent navier stokes (gallery) does not work

Hi Marc The issue propagates up to master. The commit right before 0c59a54d7385a8e862fa114201e91c0f3c53, which is a36c5bc5fe032abff1ded245d3bfb2bd4af1bbb8 still runs fine (in this particular example). Could you or someone verify this two particular commits and confirm my findings, and

Re: [deal.II] time dependent navier stokes (gallery) does not work

Hi Giang, > I did the git bisect (14 iterations) and it reveals that the commit 0c59a54d7385a8e862fa114201e91c0f3c53 gives the problem. For convenience, I linked to the commit with that specific hash. This

Re: [deal.II] time dependent navier stokes (gallery) does not work

Hi Wolfgang Thanks for the hint. Luckily the old code compiled and runs fine with v9.0.0. I did the git bisect (14 iterations) and it reveals that the commit 0c59a54d7385a8e862fa114201e91c0f3c53 gives the problem. In addition somewhere between commit

Re: [deal.II] time dependent navier stokes (gallery) does not work

On 6/5/21 9:02 AM, hgbk...@gmail.com wrote: I have tried to run this example with deal.II 9.1.0 and this problem still persists. With deal.II 9.0.0/9.0.1 the example fails to compile because it requires affine_constraints.h, which is not yet introduced:

Re: [deal.II] time dependent navier stokes (gallery) does not work

Hello I have tried to run this example with deal.II 9.1.0 and this problem still persists. With deal.II 9.0.0/9.0.1 the example fails to compile because it requires affine_constraints.h, which is not yet introduced:

Re: [deal.II] time dependent navier stokes (gallery) does not work

On 6/2/21 4:42 PM, hgbk...@gmail.com wrote: Well I could try to reproduce this example with older version of deal.II but this also requires a specific version of Petsc. I forgot to mention above that deal.II is compiled with petsc-3.15.0. A hint on the timeline, e.g. the day the results are

Re: [deal.II] time dependent navier stokes (gallery) does not work

Well I could try to reproduce this example with older version of deal.II but this also requires a specific version of Petsc. I forgot to mention above that deal.II is compiled with petsc-3.15.0. A hint on the timeline, e.g. the day the results are produced, could be useful. Best Giang On

Re: [deal.II] time dependent navier stokes (gallery) does not work

On 6/2/21 3:07 AM, hgbk...@gmail.com wrote: compile but does not run correctly with deal.II 9.2.0 . The analysis can run until step 204 and then diverge. Would it be possible changes in preconditioner destroy the convergence?

Re: [deal.II] time dependent navier stokes (gallery) does not work

Hi Giang, > Does anyone know which version of deal.II that this example run perfectly? To answer your immediate question: It looks like the last major change to the code happened in Apr/May 2018 which, in conjunction with the version of deal.II that it previously used to target in the

[deal.II] time dependent navier stokes (gallery) does not work

Hello I would like to report that the time dependent Navier Stokes example in https://dealii.org/developer/doxygen/deal.II/code_gallery_time_dependent_navier_stokes.html compile but does not run correctly with deal.II 9.2.0 . The analysis can run until step 204 and then diverge. Would it be