Solver error in 2D Heat Transfer

Numerical methods and mathematical models of Elmer
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Reedman
Posts: 1
Joined: 08 Mar 2017, 04:43
Antispam: Yes

Solver error in 2D Heat Transfer

Post by Reedman »

I am a newbie to Elmer ....
I am trying to run the simplest, 2D heat transfer problem,
but running into solver problems.

A square, with the opposite sides at different temperatures.

I successfully entered the first example in the ElmerGrid manual
I loaded that example into Elmer GUI.
I was able to split the edge into four edges, and assigned different temperatures
to two opposite edges.

When I run the solver, I get this error:

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0 ffffffffffffffff

Any ideas?
Thanks,

George
mzenker
Posts: 1999
Joined: 07 Dec 2009, 11:49
Location: Germany

Re: Solver error in 2D Heat Transfer

Post by mzenker »

Hi,

in general, it is advised to use an external mesher (gmsh, Salomé) to prepare the mesh.

HTH,

Matthias
annier
Posts: 1168
Joined: 27 Aug 2013, 13:51
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Re: Solver error in 2D Heat Transfer

Post by annier »

George wrote:Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0 ffffffffffffffff
1. Rough guess
I guess the mesh is too fine/dense for the limited memory of your computer calculation. Try with a coarser mesh.

2. Elmer Files uploaded here can help the experts or other users to debug your issue. At least you need to provide the geometry/mesh and sif files.

Yours Sincerely,
Anil Kunwar
Anil Kunwar
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice
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