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
Search found 79 matches
- 26 Sep 2023, 12:20
- Forum: ElmerSolver
- Topic: Change of behaviour of SaveScalars solver
- Replies: 4
- Views: 280
- 25 Sep 2023, 12:04
- Forum: ElmerSolver
- Topic: Change of behaviour of SaveScalars solver
- Replies: 4
- Views: 280
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: 7459
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: 6419
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: 6419
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: 5699
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: 2224
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: 2224
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: 5129
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...
- 15 Oct 2020, 09:17
- Forum: ElmerSolver
- Topic: There are no Solvers in the System
- Replies: 4
- Views: 3565
Re: There are no Solvers in the System
Hello, In section "Equation 1", there is no solver indicated! You should have a line of that type in this section Active Solvers (1)= 1 But also you should have at least one solver section which tells which equation you are solving! See examples in /elmerfem/fem/tests of the source code. R...