Search found 80 matches
- 07 Apr 2024, 11:33
- Forum: Bug reports
- Topic: Bug in SaveScalars in parallel?
- Replies: 2
- Views: 244
Bug in SaveScalars in parallel?
Hi all, I have an issue with the new version of the SaveScalars (may be not so new, but since OnBed and OneSurface were introduced). It seems that the "Boundary Sum" is not working correctly anymore in parallel. I have made a simple test case of a cube with an imposed "External pressu...
- 26 Sep 2023, 12:20
- Forum: ElmerSolver
- Topic: Change of behaviour of SaveScalars solver
- Replies: 4
- Views: 362
Re: Change of behaviour of SaveScalars solver
Hi Peter,
Thanks for the answer, I think it will solve the problem. Yes, indeed my two boundaries don't share any node and I need the sum on the two boundaries separately.
Olivier
Thanks for the answer, I think it will solve the problem. Yes, indeed my two boundaries don't share any node and I need the sum on the two boundaries separately.
Olivier
- 25 Sep 2023, 12:04
- Forum: ElmerSolver
- Topic: Change of behaviour of SaveScalars solver
- Replies: 4
- Views: 362
Change of behaviour of SaveScalars solver
Dear all, I have noticed a change in the behaviour of the "Boundary Sum" of the SaveScalars solver. When doing Variable 2 = String "Stress Vector 1" Operator 2 = String "Boundary Sum" in SaveScalars solver for two boundaries (i.e. Save Scalars = Logical True in BC1 and ...
- 03 Jan 2022, 13:20
- Forum: Elmer/Ice
- Topic: Problems with basal sliding when applying Porous Solver
- Replies: 7
- Views: 8380
Re: Problems with basal sliding when applying Porous Solver
Dear Gleb,
The form of the friction law here is linear, i.e. \tau_nt = C u_t where C is the "Porous Slip Coef t", for t = 1 and 2. If you want to use more complex friction laws, you should have a look on the wiki in User Functions (Weertman, Coulomb, Budd).
Hope it helps,
Olivier
The form of the friction law here is linear, i.e. \tau_nt = C u_t where C is the "Porous Slip Coef t", for t = 1 and 2. If you want to use more complex friction laws, you should have a look on the wiki in User Functions (Weertman, Coulomb, Budd).
Hope it helps,
Olivier
- 27 Mar 2021, 13:32
- Forum: Elmer/Ice
- Topic: Numerical instabilities (spikes in the ice surface) at grounding line
- Replies: 4
- Views: 7284
Re: Numerical instabilities (spikes in the ice surface) at grounding line
Hi Clara,
Did you try to decrease your time step?
Also, having a water pressure dependent friction law might help by removing the discontinuity at the GL.
Hope it helps
Olivier
Did you try to decrease your time step?
Also, having a water pressure dependent friction law might help by removing the discontinuity at the GL.
Hope it helps
Olivier
- 24 Mar 2021, 12:23
- Forum: Elmer/Ice
- Topic: Numerical instabilities (spikes in the ice surface) at grounding line
- Replies: 4
- Views: 7284
Re: Numerical instabilities (spikes in the ice surface) at grounding line
Helo,
Can you be more specific? Are you running a Stokes or a SSA simulation? 2d or 3d? From which setup did you started?
Regards,
Olivier
Can you be more specific? Are you running a Stokes or a SSA simulation? 2d or 3d? From which setup did you started?
Regards,
Olivier
- 10 Feb 2021, 13:48
- Forum: Bug reports
- Topic: Dirichlet condition in the body force section
- Replies: 0
- Views: 6093
Dirichlet condition in the body force section
Hello, When executing a solver on the boundary of the bulk mesh (e.g. the free surface solver), the Dirichlet boundary conditions imposed in the Body Force section associated to this second body are not imposed. The problem is in the SolverUtils routine where the loop is only done over NumberOfBulkE...
- 08 Jan 2021, 19:21
- Forum: ElmerSolver
- Topic: VariableAddVector - elmental variable
- Replies: 3
- Views: 2281
Re: VariableAddVector - elmental variable
Thanks Peter!
One more question regarding elemental variable. Are they supported for Restart procedure (writing and reading in .result)?
Thanks again
Olivier
One more question regarding elemental variable. Are they supported for Restart procedure (writing and reading in .result)?
Thanks again
Olivier
- 07 Jan 2021, 23:30
- Forum: ElmerSolver
- Topic: VariableAddVector - elmental variable
- Replies: 3
- Views: 2281
VariableAddVector - elmental variable
Hi, When creating a variable from a solver, one can use the VariableAddVector subroutine: SUBROUTINE VariableAddVector( Variables,Mesh,Solver,Name,DOFs,Values,& Perm,Output,Secondary,VarType,Global,InitValue,IpPoints) By default it will create a nodal value. Which value should be given to VarTyp...
- 05 Nov 2020, 22:37
- Forum: Elmer/Ice
- Topic: 2-D Flow line Model
- Replies: 2
- Views: 5821
Re: 2-D Flow line Model
Hello, The problem is that you have zero thickness at the front of the glacier and that you should take care that the mesh has a minimum height by setting Minimum Mesh Height = Real 1.0 Correct Surface = Logical True in the Solver section of StructuredMeshMapper. Moreover, for a 2d flow line problem...