Search found 31 matches

by thomasatelmer
19 Oct 2019, 05:14
Forum: General
Topic: [SOLVED]convergence history view window missing
Replies: 9
Views: 4140

Re: [SOLVED]convergence history view window missing

Hi Peter,

recently I installed Elmer on Ubuntu 18.04 at home by using the apt-get command with the package elmerfem-csc-eg. The menu item in ElmerGUI to activate showing the convergence graphs is missing (Run --> Show convergence). Is this intended?

Thanks and Greetings,
Thomas.
by thomasatelmer
03 Oct 2019, 22:45
Forum: Bug reports
Topic: Entries in Free Text Field in N-S Solver Control don't show in SIF
Replies: 6
Views: 2071

Re: Entries in Free Text Field in N-S Solver Control don't show in SIF

Hello and good evening, another, probably last update to this Topic. After rebuilding the Simulation case from scratch, the entries for "Procedure" and "Variable" in the NS solver Control Dialogue do not look like in the error case any more, although now MeshUpdate is also activated. Instead of prev...
by thomasatelmer
29 Sep 2019, 19:27
Forum: Bug reports
Topic: Entries in Free Text Field in N-S Solver Control don't show in SIF
Replies: 6
Views: 2071

Re: Entries in Free Text Field in N-S Solver Control don't show in SIF

Hi alltogether, I just noticed another Twist to the whole Story. I was running my current Project without the MeshUpdate Solver active. In this case, the solver variables for the NS solver Change. The variable field now states the Solution variables "Flow Solution[Velocity:cdim Pressure:1]". And the...
by thomasatelmer
20 Sep 2019, 12:42
Forum: Bug reports
Topic: Entries in Free Text Field in N-S Solver Control don't show in SIF
Replies: 6
Views: 2071

Re: Entries in Free Text Field in N-S Solver Control don't show in SIF

Alright, Peter, I completely agree - the operational results are also not proper Focus for a bug Report. So would you consider the described behaviour as something that can and should be corrected in the next Releases :-) ? Otherwise we have to live with manually editing the SIF file every time afte...
by thomasatelmer
19 Sep 2019, 18:29
Forum: ElmerSolver
Topic: Limiting possible internal fluid pressure in Navier-Stokes simulation
Replies: 4
Views: 1319

Re: Limiting possible internal fluid pressure in Navier-Stokes simulation

Hello everybody, I managed to use soft limiters for the pressure in the Navier-Stokes solver. Per section 8.2 of the solver Manual: In the solver Control section: Apply Limiter = Logical True Limiter Value Tolerance = Real 1.0e-9 Limiter Load Tolerance = Real 1.0e-9 This generally enables the limite...
by thomasatelmer
19 Sep 2019, 18:03
Forum: Bug reports
Topic: Entries in Free Text Field in N-S Solver Control don't show in SIF
Replies: 6
Views: 2071

Re: Entries in Free Text Field in N-S Solver Control don't show in SIF

Hi Peter, thank you for your always quick Reply. I knew I forgot to mention something. The soft limiter functionality will Limit pressure to vapour pressure in a fluid film, hence it is given in the N-S solver. It is added as Body force to the fluid, the shown entry in the free text field just shoul...
by thomasatelmer
19 Sep 2019, 15:46
Forum: Bug reports
Topic: Entries in Free Text Field in N-S Solver Control don't show in SIF
Replies: 6
Views: 2071

Entries in Free Text Field in N-S Solver Control don't show in SIF

Hello alltogether, I am frequently using extra Options to Control specialities of the solvers and normally, the entries in the Free Text fields in the GUI dialogues Show up in the SIF file at the end of the respective section. In one case however, that is the solver Control of the Navier-Stokes solv...
by thomasatelmer
31 May 2019, 14:51
Forum: ElmerSolver
Topic: Limiting possible internal fluid pressure in Navier-Stokes simulation
Replies: 4
Views: 1319

Re: Limiting possible internal fluid pressure in Navier-Stokes simulation

Hello Peter, thank you for your assessment, I seem to be coming to the more difficult Areas now... :-). I wonder if using a user-defined compressibility model would do the trick, much like in http://www.elmerfem.org/forum/viewtopic.php?t=748#p2528 Example from this post: Material 1 Name = "Lubricant...
by thomasatelmer
24 May 2019, 14:51
Forum: ElmerSolver
Topic: Limiting possible internal fluid pressure in Navier-Stokes simulation
Replies: 4
Views: 1319

Limiting possible internal fluid pressure in Navier-Stokes simulation

Hello, Elmer community, I am sending in my question after undergoing some Research in this Forum here, and I did not find possible Solutions unfortunately. For modelling a 3D case of shearing a thin layer of low-viscosity fluid, I am undertaking Simulation using the N-S solver with incompressible ma...
by thomasatelmer
24 May 2019, 14:37
Forum: External tools
Topic: Scalar field inconsistency at geometry face border?
Replies: 10
Views: 2980

Re: Scalar field inconsistency at geometry face border?

Thank you for your assessment, Peter,

so I understand that I have to Focus in on the linear solver Settings. I will Keep this in mind when doing my next runs.

Best Regards and thank you for the continued assistance,
Thomas.