Search found 80 matches
- 25 Sep 2017, 08:52
- Forum: Elmer/Ice
- Topic: Problem with the Coulomb sliding law
- Replies: 6
- Views: 9090
Re: Problem with the Coulomb sliding law
Dear Matt, Ok, that is strange that you don't get the same results after the first steady iteration with the new version of the solver? Are the results still different if you go for more than one iterations? For the effective pressure, you will have to export the variable "Effective pressure&qu...
- 05 Sep 2017, 10:30
- Forum: Elmer/Ice
- Topic: Problem with the Coulomb sliding law
- Replies: 6
- Views: 9090
Re: Problem with the Coulomb sliding law
Dear Matt, I have modified the user function such that if the Cauchy normal stress is zero (which should be the case at a first iteration of a steady state problem or at the first time step of a transient one), then the normal stress is approximated by the isotropic pressure. If you do only one iter...
- 04 Sep 2017, 09:19
- Forum: Elmer/Ice
- Topic: GlaDS channels with an extruded mesh
- Replies: 7
- Views: 10698
Re: GlaDS channels with an extruded mesh
Dear Samuel, Thanks for the report. The point would be to test the same case with a "true" 3d mesh to see if the problems are arising because of the internal extrusion or because of the 3d mesh not well accounted for in the GlaDS solvers. Would it be possible for you to make such test? Reg...
- 01 Sep 2017, 09:52
- Forum: Elmer/Ice
- Topic: Problem with the Coulomb sliding law
- Replies: 6
- Views: 9090
Re: Problem with the Coulomb sliding law
Dear Matt, The issue here is that stresses are unknown (and therefore set to zero) for the first time you enter the Stokes solver. This will be always the case for the first time step of a transient simulation or for the first iteration of a steady state simulation, as in your case. To solve this, y...
- 10 Feb 2017, 16:25
- Forum: Bug reports
- Topic: Error in the formula for internal extrusion
- Replies: 1
- Views: 3763
Error in the formula for internal extrusion
Hello, I think there is a small error in the formula to compute the space between nodes when using the internal extrusion with the keyword "Extruded Mesh Ratio". By definition in the documentation, Extruded Mesh Ratio is the ratio between the first and the last element and the element size...
- 11 Jan 2017, 18:09
- Forum: Elmer/Ice
- Topic: ctest failures
- Replies: 3
- Views: 7926
Re: ctest failures
Dear Nathan, Only the two firsts of the 7 tests that failed are Elmer/Ice tests. The error might be that you need specific options to compile these two solvers. Have a look on the wiki: http://elmerice.elmerfem.org/wiki/doku.php?id=solvers:griddatareader (netcdf lib) http://elmerice.elmerfem.org/wik...
- 04 May 2015, 18:33
- Forum: Elmer/Ice
- Topic: problems when adding a sliding part
- Replies: 2
- Views: 5779
Re: problems when adding a sliding part
Hello, The first problem is that the path to the DEM file is not correct (the file DEM_TR_bed.dat is in the Data directory): Bottom Surface = Variable Coordinate 1 Real cubic include "./Data/DEM_TR_bed.dat" End The second problem is that you have changed the DEM description in the Grid2DIn...
- 09 Mar 2015, 17:25
- Forum: Bug reports
- Topic: StructuredMeshMapper and steady iteration
- Replies: 0
- Views: 4058
StructuredMeshMapper and steady iteration
Dear all, I am running a transient simulation using steady state iterations over each timestep (Steady State Max Iterations = 8 in the Simulation section). The simulation couple Stokes equations and a free surface. It seems that the Mesh Velocity Variable and the Mesh Update Variable computed by the...
- 18 Nov 2014, 10:59
- Forum: Elmer/Ice
- Topic: Help for ExtrudeMesh
- Replies: 2
- Views: 7233
Re: Help for ExtrudeMesh
Hello, I would suggest, if you are starting a new modelisation, to move to the internal extrusion to create your 3d mesh from a 2d footprint. You can have a look at the Tete Rousse example from the last Elmer/Ice course done in Reykjavik last month (http://elmerice.elmerfem.org/wiki/doku.php?id=cour...
- 13 Nov 2014, 13:16
- Forum: Elmer/Ice
- Topic: Help to simulate Sheet/Shelf problems
- Replies: 4
- Views: 9203
Re: Help to simulate Sheet/Shelf problems
You sould have a look in the example i have just added in the Elmer/Ice distribution, in [ELMER_TRUNK]/elmerice/Tests/GL_MISMIP.
Regards
Olivier
Regards
Olivier