Search found 1168 matches
- 23 Feb 2022, 21:13
- Forum: ElmerSolver
- Topic: System diverged over tolerance
- Replies: 7
- Views: 5534
Re: System diverged over tolerance
As your case is so small you could use "Direct" solver and there "Linear System Direct Method = umfpack". This will at least get rid of the 1st linear system convergence issue. Peter, Are there any other addition solutions to using direct solver? For coupled heat and flow solver...
- 15 Nov 2021, 18:17
- Forum: ElmerSolver
- Topic: Strong coupling between different models
- Replies: 3
- Views: 1742
Re: Strong coupling between different models
Hi Peter,
Thank you for providing me with the information about the test examples. I will study some examples of fluid-structure and structure-structure coupling.
Yours Sincerely,
Anil Kunwar
Thank you for providing me with the information about the test examples. I will study some examples of fluid-structure and structure-structure coupling.
Yours Sincerely,
Anil Kunwar
- 08 Oct 2021, 16:23
- Forum: General
- Topic: About Coordinate Scaling in Elmer Plugin in Salome
- Replies: 1
- Views: 2437
Re: About Coordinate Scaling in Elmer Plugin in Salome
Hi, The dimensions of the geometry /mesh exported from Salome do not have any unit, and so the same mesh can be designed in many ways in the FEM simulation. The distance 603.268 is a unitless number, and so you can imagine it to be of any unit. Now , if the above unitless length of 603.268 is assume...
- 08 Oct 2021, 03:03
- Forum: ElmerSolver
- Topic: Using ElmerSolver for Flow
- Replies: 2
- Views: 1391
Re: Using ElmerSolver for Flow
Test examples using solely flow solver are also available in github repository of Elmer.
https://github.com/ElmerCSC/elmerfem/tr ... wResNoslip
https://github.com/ElmerCSC/elmerfem/tr ... lowResSlip
https://github.com/ElmerCSC/elmerfem/tr ... wResNoslip
https://github.com/ElmerCSC/elmerfem/tr ... lowResSlip
- 08 Oct 2021, 02:58
- Forum: ElmerSolver
- Topic: Time dependent 3D Maxwell material viscoelastic Earth deformation
- Replies: 23
- Views: 5750
Re: Time dependent 3D Maxwell material viscoelastic Earth deformation
Thomas,
Thank you for the test example. Especially, it is helpful for us to make comparisons between MATC and lua style expressions for writing functions.
Yours Sincerely,
Anil
Thank you for the test example. Especially, it is helpful for us to make comparisons between MATC and lua style expressions for writing functions.
Yours Sincerely,
Anil
- 08 Oct 2021, 02:51
- Forum: ElmerSolver
- Topic: Strong coupling between different models
- Replies: 3
- Views: 1742
Re: Strong coupling between different models
Hi Peter,
Are there any tests available in github repository for the monolithic solver (strong coupling)?
Yours Sincerely,
Anil Kunwar
Are there any tests available in github repository for the monolithic solver (strong coupling)?
Yours Sincerely,
Anil Kunwar
- 08 Oct 2021, 02:29
- Forum: ElmerSolver
- Topic: Elmer Command-Line Workflow -> Program received signal SIGSEGV
- Replies: 11
- Views: 3262
Re: Elmer Command-Line Workflow -> Program received signal SIGSEGV
As mentioned in previous posts, the error Program received signal SIGSEGV: Segmentation fault - invalid memory reference. happens due to many known and unknown reasons that finally leads the solver to stop running. I have encountered the errors for the following reasons: 1. Large mesh size compared ...
- 04 Sep 2021, 17:10
- Forum: ElmerSolver
- Topic: Level set Courant number
- Replies: 3
- Views: 1854
Re: Level set Courant number
How Can I compute the Courant number for the level set? Probably my question is trivial. I know that the Delta_x(grid dimension), Delta_t (time step) and velocity V appear in the Courant number, but what is that V? How can I compute in a simulation? Regards, Andrea The V in Courant number (C) = V* ...
- 04 Sep 2021, 17:02
- Forum: ElmerSolver
- Topic: Level set Courant number
- Replies: 3
- Views: 1854
Re: Level set Courant number
Dear Andrea,
You have to define the Courant number (less than or equal to 1) yourself in the simulation section of the sif file.
If you do not define it there, the default value of Courant number = 1 is utilized in the simulation.
You have to define the Courant number (less than or equal to 1) yourself in the simulation section of the sif file.
If you do not define it there, the default value of Courant number = 1 is utilized in the simulation.
- 04 Sep 2021, 16:54
- Forum: General
- Topic: Run the sif file by ElmerGui Windows
- Replies: 6
- Views: 5750
Re: Run the sif file by ElmerGui Windows
Can you please paste the message given by the ElmerSolver ?
The path of the solver input file must be defined to the ElmerSolver for the solve to run perfectly.
The path of the solver input file must be defined to the ElmerSolver for the solve to run perfectly.