Search found 74 matches

by kataja
07 Dec 2016, 13:03
Forum: Installation & compilation
Topic: compile and run on Debian Jessie
Replies: 12
Views: 5595

Re: compile and run on Debian Jessie

Please look https://github.com/ElmerCSC/elmerfem/wiki/Compilation how to compile and install elmer solver.

Cheers,
Juhani
by kataja
10 Nov 2016, 17:45
Forum: ElmerSolver
Topic: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy
Replies: 30
Views: 8004

Re: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy

It seems that the mesh includes hexahedral and prism elements so using "Use piola transform = logical true" inside Solver $solver_AV -- End block might help. This will enrich the edge element basis to a "more complete" one.
by kataja
10 Oct 2016, 10:13
Forum: Installation & compilation
Topic: Installation on ubuntu 16.04 LTS
Replies: 13
Views: 9881

Re: Installation on ubuntu 16.04 LTS

For some reason, the shared objects are not found in Ubuntu 16.04 using RPATH. Workaround for this should be (assuming bash): $ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/elmersolver or $ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/elmersolver $ ElmerGUI depending where the shared ...
by kataja
01 Sep 2016, 10:05
Forum: Installation & compilation
Topic: Installation on ubuntu 16.04 LTS
Replies: 13
Views: 9881

Re: Installation on ubuntu 16.04 LTS

Not exactly so. Setting export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ELMER_HOME/lib in any system is superfluous. I don't understand why this directory "$ELMER_HOME/lib" keeps popping up. Instead, in ubuntu 16.04 one needs to set export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ELMER_HOME/lib/elmersolver Instal...
by kataja
01 Sep 2016, 09:54
Forum: ElmerSolver
Topic: Whitney AV Solver:: Boundary tree edges error
Replies: 1
Views: 1020

Re: Whitney AV Solver:: Boundary tree edges error

Have you tried as a workaround to set boundary condition for vector potential so that its curl is just constant vector (eg, A_x = -y/2, A_y = x/2 for B=+- u_z)? I'm not sure, however, that this is a physically proper workaround to your problem. It might be.. Anyways, on a sif level it'd look somethi...
by kataja
23 Aug 2016, 10:27
Forum: Installation & compilation
Topic: Installation on ubuntu 16.04 LTS
Replies: 13
Views: 9881

Re: Installation on ubuntu 16.04 LTS

The shared objects are installed under $ELMER_HOME/lib/elmersolver and not $ELMER_HOME/lib so put

Code: Select all

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ELMER_HOME/lib/elmersolver
in your .bashrc.
by kataja
18 Aug 2016, 11:55
Forum: ElmerSolver
Topic: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy
Replies: 30
Views: 8004

Re: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy

I'm a bit confused over which surface the flux is to be calculated?

It seems, however, somehow sensible to only consider line integrals of the vector potential instead of surface integrals because only the boundary line and vector potential on it matter in terms of flux..

-Juhani
by kataja
17 Aug 2016, 10:20
Forum: ElmerSolver
Topic: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy
Replies: 30
Views: 8004

Re: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy

Hi! You are right, sometimes it is. However, with the convective flux operator one doesn't need to define the normal. It is automatically deduced. Moreover, integrating over dim-1 (surfaces in 3D and curves in 2D) domains, where dim is the ambient space dimension, can be naturally done with elmer be...
by kataja
15 Aug 2016, 13:50
Forum: ElmerSolver
Topic: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy
Replies: 30
Views: 8004

Re: Elmer Magnetics 3D comparison with 2D Axisymmetric Lumpy

Hi, note also that integrating the normal component of the variable "magnetic flux density e" over some surface gives you exactly the right line integral of vector potential over its boundary (see SaveData module and convective flux operator). Internally, the "e" field is of first order (or higher) ...