Search found 183 matches

by Takala
23 Aug 2013, 09:41
Forum: Bug reports
Topic: ViewFactors.c: IntegrateFromGeometry (seg. fault)
Replies: 4
Views: 3498

Re: ViewFactors.c: IntegrateFromGeometry (seg. fault)

Hi Peter, thanks for the answer. You say that one of the problem is meshing of the free space. At the moment this would not be a problem for me since I do not have mesh free domains in my model. But I guess that doesn't help since the time stepping would be an issue. One would have to calculate seve...
by Takala
22 Aug 2013, 15:19
Forum: Bug reports
Topic: ViewFactors.c: IntegrateFromGeometry (seg. fault)
Replies: 4
Views: 3498

Re: ViewFactors.c: IntegrateFromGeometry (seg. fault)

I think I found the problem: I have too many radiating surface elements. There are in total 97473 elements. check this out: This is what I write in the ViewFactors.f90 ! CALL ViewFactors3D( & ! N, Surfaces, TYPE, Coords, Normals, & ! 0, Surfaces, TYPE, Coords, Normals, & ! Factors, AreaEPS, FactEPS,...
by Takala
22 Aug 2013, 13:14
Forum: Bug reports
Topic: ViewFactors.c: IntegrateFromGeometry (seg. fault)
Replies: 4
Views: 3498

ViewFactors.c: IntegrateFromGeometry (seg. fault)

Hello, I am tracing a bug in ViewFactors.c: I have the following debug code in the "static void IntegrateFromGeometry" fprintf( stdout, "Debug: ViewFactorCompute: "); fflush( stdout ); (*ViewFactorCompute[Elements[i].GeometryType])( &Elements[i],&Elements[j],0,0 ); fprintf( stdout, "Debug: ComputeVi...
by Takala
22 Aug 2013, 09:02
Forum: Software development
Topic: Overlapping Boundary Conditions
Replies: 3
Views: 4488

Re: Overlapping Boundary Conditions

Hi Eelis Now there is no feature like you request currently. In ElmerGrid there is some primitive feature (-boundbound and -bulkbound) that try to define new boundary elements from unions of existing ones. This hasn't been too much used and may fail for some elementtypes. So you can create a union ...
by Takala
22 Aug 2013, 08:40
Forum: Software development
Topic: Overlapping Boundary Conditions
Replies: 3
Views: 4488

Re: Overlapping Boundary Conditions

Hi Peter, thanks for the exhaustive answer. So you are saying that in elmer the intersection of two geometry groups (with respect to the elements) is always empty due to the tag limit? And how about the "mesh.elements" structure, does that support "multiple groups" for elements. If i'd have to guess...
by Takala
20 Aug 2013, 15:15
Forum: Software development
Topic: Overlapping Boundary Conditions
Replies: 3
Views: 4488

Overlapping Boundary Conditions

Hello, I'm thinking about boundary condition definitions and actually this applies for geometry groups in general: Let us assume I have a model boundary Omega = Union(Omega_1, Omega_2), Now, normally we'd prefere Intersection(Omega_1, Omega_2) = Emptyset, And this is how in Elmer it usually is (if n...
by Takala
19 Aug 2013, 13:23
Forum: ElmerSolver
Topic: Need Help with ElasticSolve problem
Replies: 8
Views: 2282

Re: Need Help with ElasticSolve problem

Hey Everybody, 1.Is it correct to assume if what I want to detect are large deformations I should use non linear analysis? 2.Can I use a transitive solver with ElasticSolve so I can look at intermediate stretches (ie below the full 1.5x stretch)? 2.Will someone help me with the .sif file? Hi Alok, ...
by Takala
19 Aug 2013, 09:50
Forum: ElmerSolver
Topic: Eddy current in wire
Replies: 7
Views: 4627

Re: Eddy current in wire

Hi, I think one problem could be your boundary conditions: At the moment AV-formulation in Elmer is not the best for studying this. It is not simpe to create the correct potential difference in an infinitely long wire (in prinsiple you could calculate it, but it is not the point is it?). In general ...
by Takala
05 Aug 2013, 10:14
Forum: General
Topic: "parallel" run on shared memory machine
Replies: 1
Views: 998

Re: "parallel" run on shared memory machine

Hi NickR7,

yes, you need to recompile with MPI.

-Eelis
by Takala
05 Aug 2013, 07:10
Forum: Software development
Topic: Linear Elasticity Solver exaggerate displacements
Replies: 2
Views: 3822

Re: Linear Elasticity Solver exaggerate displacements

Hi Peter,

Thanks for the tip!

-Eelis