Search found 2293 matches
- Yesterday, 14:29
- Forum: ElmerSolver
- Topic: Toy hierarchical problem
- Replies: 12
- Views: 133
Re: Toy hierarchical problem
I was able to work through a 2D case, I will try and extend it to a 3d case.
- 16 Apr 2024, 12:13
- Forum: ElmerSolver
- Topic: Toy hierarchical problem
- Replies: 12
- Views: 133
Re: Toy hierarchical problem
Regarding your plot along a line. The results data are only at the nodes, so when you do a line through the model the data is close to some nodes but farther away from others. This would impact the plot. Finer mesh would help. You can also build the mesh such that there is a line of nodes along wher...
- 16 Apr 2024, 00:18
- Forum: General
- Topic: FreeCad FEM mesh: boundary, region and group. Which one and when?
- Replies: 3
- Views: 55
Re: FreeCad FEM mesh: boundary, region and group. Which one and when?
Depending on how the mesh gets saved out of gmsh (all elements or just grouped elements) , elmer makes each group a body, but any solid elements not grouped are sent to the additional group/body of everything not grouped. However, there are flags in gmsh to save all, or just save groups.
- 15 Apr 2024, 18:28
- Forum: ElmerSolver
- Topic: Toy hierarchical problem
- Replies: 12
- Views: 133
Re: Toy hierarchical problem
https://www.nic.funet.fi/pub/sci/physics/elmer/doc/GetStartedElmer.pdf This document particularly chapter 9.3 on Elmer and gmsh. Basically the volume of the thing wrapped in air has to be cut from the volume representing the air, and the solid representing the thing is included back (fragments in gm...
- 15 Apr 2024, 12:49
- Forum: ElmerSolver
- Topic: Toy hierarchical problem
- Replies: 12
- Views: 133
Re: Toy hierarchical problem
You use many of the default constants on Elmer and Elmer materials these are in SI units therefore the physical dimensions are to be in meters. Your geometry looked very large so I threw in a scale factor of 0.001, but I do not know if that is correct. Having the wrong dimensions could cause diverge...
- 15 Apr 2024, 12:09
- Forum: ElmerSolver
- Topic: Error using CoilSolver
- Replies: 15
- Views: 385
Re: Error using CoilSolver
In the manual page 171 there is a solver flag
Desired Coil Current
https://www.nic.funet.fi/pub/sci/physic ... Manual.pdf
So you could take off the body force and use Desired Coil Current
See test case
https://github.com/ElmerCSC/elmerfem/tr ... oilSolver1
Desired Coil Current
https://www.nic.funet.fi/pub/sci/physic ... Manual.pdf
So you could take off the body force and use Desired Coil Current
See test case
https://github.com/ElmerCSC/elmerfem/tr ... oilSolver1
- 15 Apr 2024, 11:59
- Forum: General
- Topic: FreeCad FEM mesh: boundary, region and group. Which one and when?
- Replies: 3
- Views: 55
Re: FreeCad FEM mesh: boundary, region and group. Which one and when?
In 3d groups of solid elements become bodies, groups of plate elements become boundary surfaces. 1D elements are eliminated if you use -autoclean. ElmerGUI uses -autoclean by default.
In 2D models groups of plate elements become bodies, groups of 1D elements become boundaries.
In 2D models groups of plate elements become bodies, groups of 1D elements become boundaries.
- 13 Apr 2024, 15:15
- Forum: General
- Topic: Acoustic waves propagation in a solid body
- Replies: 5
- Views: 101
Re: Acoustic waves propagation in a solid body
Void in the plate on the left side, right side no void.
- 13 Apr 2024, 14:38
- Forum: ElmerSolver
- Topic: Understanding mechanical simulations with boundary contacts
- Replies: 1
- Views: 71
Re: Understanding mechanical simulations with boundary contacts
This was my attempt, with and without the magnets. Without the magnets and no need for contact, the rotor deforms as expected.
with magnets on the left, without on the right
on the left it appears to deflect inward instead of outward as expected. The white is undeformed
with magnets on the left, without on the right
on the left it appears to deflect inward instead of outward as expected. The white is undeformed
- 13 Apr 2024, 13:57
- Forum: ElmerSolver
- Topic: Toy hierarchical problem
- Replies: 12
- Views: 133
Re: Toy hierarchical problem
Sphere for the air is better, 1 infinity boundary, and the BC is written for the spherical case.
Electric Infinity BC Logical
The spherical approximation for the open boundaries extending to infinity.
Electric Infinity BC Logical
The spherical approximation for the open boundaries extending to infinity.