Search found 3409 matches

by raback
13 May 2019, 21:40
Forum: ElmerSolver
Topic: Result becames strange in an edited model
Replies: 6
Views: 87

Re: Result becames strange in an edited model

Hi One thing I noticed is that you give "emissivity" for "air". Try to take it away. Now the radiation BCs require 1) emissity and 2) normal direction. You can nicely do this simply by given emissity to the solid parts which truly form the surfaces and radiate outwards. If you also give air the emis...
by raback
13 May 2019, 21:32
Forum: ElmerSolver
Topic: Damping in StressSolver
Replies: 7
Views: 150

Re: Damping in StressSolver

Kevin, nice work in the verification! _peter
by raback
13 May 2019, 21:30
Forum: General
Topic: Application to complex mechanical assembly
Replies: 2
Views: 49

Re: Application to complex mechanical assembly

Have to agree here. For pure mechanical problems I would go with dedicated codes. -Peter
by raback
01 May 2019, 19:10
Forum: ElmerSolver
Topic: ElmerSolver seems to ingore second body
Replies: 5
Views: 125

Re: ElmerSolver seems to ingore second body

Hi Stefan

The "merge" option can only merge meshes that are conforming i.e. have nodes at the same location at the interface of interest. If you have no special strategy to ensure that then probably only a few corner nodes will be merged.

-Peter
by raback
29 Apr 2019, 12:48
Forum: General
Topic: Eddy current 2D electromagnetic simulation
Replies: 1
Views: 127

Re: Eddy current 2D electromagnetic simulation

Hi

You need to use the "magnetodynamics2dharmonic" routine. See test cases, mgdyn2d_em_harmonic or InductionHeating3, for examples.

-Peter
by raback
18 Apr 2019, 15:47
Forum: ElmerSolver
Topic: Apply Lorentz force as body force for Lin Elast solver
Replies: 8
Views: 627

Re: Apply Lorentz force as body force for Lin Elast solver

Hi

Look at test case mgdyn_airgap_force:
https://github.com/ElmerCSC/elmerfem/tr ... rgap_force

There a concept of "component" is used to group together bodies. In these bodies you can automatically sum up the nodal forces that you have already computed.

-Peter
by raback
03 Apr 2019, 17:52
Forum: ElmerSolver
Topic: Conjugate heat transfer problem
Replies: 6
Views: 270

Re: Conjugate heat transfer problem

Hi Mark

Are you sure that your heat is not convected away at the outlet, or is not eaten up to warm the system in a transient case?

Peter
by raback
29 Mar 2019, 13:59
Forum: General
Topic: Calculation of Magnetic Force in 3D simulation
Replies: 1
Views: 141

Re: Calculation of Magnetic Force in 3D simulation

Hi Basically the calc fields can compute nodal magnetic forces that are in units of Force i.e. Newtons in SI units. To have the total force you need to sum up the nodal forces in given domain. For this you can use the component concept. The force always has three components corresponding to each coo...
by raback
29 Mar 2019, 13:46
Forum: ElmerSolver
Topic: Friction in limit displacement boundary condition
Replies: 1
Views: 101

Re: Friction in limit displacement boundary condition

Hi

There seems to be two ways to account for friction: explicit and implicit. Look at test cases ContactFriction* for examples. The limitation is that frictional force is assumed to be proportional to the normal force.

-Peter
by raback
28 Mar 2019, 14:54
Forum: Bug reports
Topic: Segmentation Fault with WhitneyAVSolver
Replies: 1
Views: 138

Re: Segmentation Fault with WhitneyAVSolver

Hi The problem is somewhat puzzling. The test case runs through for me, as well as on travis, see https://travis-ci.org/ElmerCSC/elmerfem/builds/512435283?utm_source=github_status&utm_medium=notification (only slow tests are skipped) You could perhaps try to remove the "CONTIG" parameter in reluctiv...