Search found 94 matches

by tzwinger
07 Apr 2012, 21:55
Forum: ElmerSolver
Topic: Mass Matrix
Replies: 11
Views: 5344

Re: Mass Matrix

Hello,
perhaps you can find some answer in chapter 6 of the ElmerSolverManual http://www.nic.funet.fi/pub/sci/physics ... Manual.pdf: Solving eigenvalue problems

Best Regards,

Thomas
by tzwinger
07 Apr 2012, 08:39
Forum: ElmerSolver
Topic: Mass Matrix
Replies: 11
Views: 5344

Re: Mass Matrix

Correction to previously sent message:

Try

Code: Select all

Dump system Matrix = String "TheFilename.suffix"
instead.

BR,

Thomas
by tzwinger
07 Apr 2012, 08:36
Forum: ElmerSolver
Topic: Mass Matrix
Replies: 11
Views: 5344

Re: Mass Matrix

Could you then try to cast it, i.e., write

Code: Select all

Dump Mass Matrix = String "TheFilename.suffix"
instead. Does that help?

Best Regards,

Thomas
by tzwinger
06 Apr 2012, 15:56
Forum: ElmerSolver
Topic: No results for Heat Flux
Replies: 3
Views: 2893

Re: No results for Heat Flux

Hello Mat, I guess the no-show of your flux might be connected to the fact that the VTU output is executed as "After Timestep" and the Flux computation as "After All" - make sure that the Flux is computed before the output. What though puzzles me from your output is, that your Fl...
by tzwinger
06 Apr 2012, 14:09
Forum: ElmerSolver
Topic: Mass Matrix
Replies: 11
Views: 5344

Re: Mass Matrix

Hi, Do you want to have the system matrix written out in ASCII? If this is your goal, a simple Dump system Matrix = filename in the solver section should do it. This was explained in the 6.2 Release Notes http://www.elmerfem.org/forum/viewtopic.php?f=11&t=1443&p=4290&hilit=Matrix+dump#p4...
by tzwinger
05 Apr 2012, 12:04
Forum: General
Topic: Interpolation from Elmer results to a new Elmer mesh
Replies: 7
Views: 3646

Re: Interpolation from Elmer results to a new Elmer mesh

Hi, so, the question was: What happens if points do not coincide with the geometry their value is interpolated from? You might get some warning about points not being found in any of the elements. Check the result and choose, whether you are satisfied or not. As I understand, there are some toleranc...
by tzwinger
05 Apr 2012, 09:59
Forum: General
Topic: Interpolation from Elmer results to a new Elmer mesh
Replies: 7
Views: 3646

Re: Interpolation from Elmer results to a new Elmer mesh

Hello, provided you have two meshes, mesh A and mesh B. easiest way would be to do a computation on mesh A, so Header Mesh DB "." "A" End and execute the first solver normally on this mesh. Solver 1 Equation = "the first solver" Variable = "VarA" ... End Then ...
by tzwinger
07 Jan 2012, 13:16
Forum: ElmerSolver
Topic: can HeatSolver ignore the "Temperature" boundary condition?
Replies: 3
Views: 2393

Re: can HeatSolver ignore the "Temperature" boundary condition?

Hello, You can basically copy&paste the steady heat transfer solver from chapter 12 of the Solver Manual or try to modify the advection diffusion solver (model #3 in Models Manual). The issue - as I understand it from your previous message - is, that you need convection switched in for temperatu...
by tzwinger
01 Sep 2011, 13:50
Forum: Installation & compilation
Topic: Easy compilation in Windows?
Replies: 10
Views: 10432

Re: Easy compilation in Windows?

Hi, the config.log should be directly in the sub-directory of the module source, where the compilation/configuration failed. For instance, when you spotted errors during compilation of the module fem, then check in fem/config.log My experience (on LINUX/UNIX platforms) with your error message "...
by tzwinger
10 Aug 2011, 13:17
Forum: Bug reports
Topic: MUMPS workspace too small
Replies: 5
Views: 5187

Re: MUMPS workspace too small

I know that this reply is vastly delayed, but I think I insert this piece of information (beside the fact that it has been mentioned in the latest release notes) also here for those who are looking up this thread: The code lines Fabien suggested have been inserted and the corresponding MUMPS paramet...