Search found 426 matches

by Rich_B
14 May 2024, 18:14
Forum: General
Topic: Elmer's solution for coupling different solvers
Replies: 3
Views: 79

Re: Elmer's solution for coupling different solvers

Hello,

Out of curiosity, just how did Elmer get named? There must be a story behind the name.

Rich.
by Rich_B
13 May 2024, 19:20
Forum: ElmerGUI
Topic: Model induction between two coils
Replies: 31
Views: 445

Re: Model induction between two coils

Hello,

Just a guess, maybe try commenting out the 'Physical' commands, and use the body and boundary numbers in the sif. Loading the mesh in ElmerGUI after commenting out the 'Physicals' gave two bodies and 12 boundaries.

Rich.
by Rich_B
13 May 2024, 18:10
Forum: ElmerGUI
Topic: Model induction between two coils
Replies: 31
Views: 445

Re: Model induction between two coils

Hello, To check for a conforming mesh, add this statement to the simulation section of a sif: Desired Mesh Pieces = 1 then running with your mesh, ElmerSolver reports an error and exits: CalculateMeshPieces: Number of separate pieces in mesh is 2 ERROR:: CalculateMeshPieces: Number of pieces differ ...
by Rich_B
01 Apr 2024, 00:03
Forum: ElmerSolver
Topic: How to Obtain the Imaginary Part in Helmholtz Equation Simulations with Elmer
Replies: 15
Views: 515

Re: How to Obtain the Imaginary Part in Helmholtz Equation Simulations with Elmer

Hello, Regarding this statement in your previous post: According to ElmerTutorials.pdf, section 17 (17. Helmholtz – 2D – Acoustic Waves – Air in a Cavity), they refer to pressure wave in the x-direction and y-direction. As written, the tutorial could be misleading. The tutorial probably should say s...
by Rich_B
23 Jan 2024, 16:56
Forum: Bug reports
Topic: ElmerGrid "forgets" some names converting from gmsh
Replies: 6
Views: 1613

Re: ElmerGrid "forgets" some names converting from gmsh

The attached archive includes bug.geo and four scripts. The scripts will run gmsh and output the msh file in both format 2 and format4, followed by ElmerGrid converting both msh files into elmer mesh format. ElmerGrid converts the gmsh format 2 msh file, retaining the duplicate boundaries. ElmerGrid...
by Rich_B
23 Jan 2024, 16:50
Forum: Bug reports
Topic: ElmerGrid "forgets" some names converting from gmsh
Replies: 6
Views: 1613

Re: ElmerGrid "forgets" some names converting from gmsh

It makes sense for ElmerGrid to eliminate duplicate boundaries. On the other hand, to remove boundaries silently is not nice. It would be nice if ElmerGrid would output a message something like: Duplicate boundary 123 found, keeping first occurrence of boundary 122.

Just my two cents.

Rich.
by Rich_B
19 Jan 2024, 16:07
Forum: ElmerSolver
Topic: IsosurfaceSolver
Replies: 10
Views: 1145

Re: IsosurfaceSolver

Hello,

ElmerGUI includes ElmerVTK under the 'Run' menu. ElmerVTK is able to create isosurface plots. Using your gmsh file, and increasing the radius from 0.65 to 12, ElmerVTK shows a nice plot of the potential isosurface, using clip of course. Does this help?

Rich.
isosurface-elmervtk.png
isosurface-elmervtk.png (134.85 KiB) Viewed 263 times
by Rich_B
19 Jan 2024, 00:00
Forum: ElmerSolver
Topic: IsosurfaceSolver
Replies: 10
Views: 1145

Re: IsosurfaceSolver

Hello, Since your gmsh model is in millimeters, one should add 'Coordinate Scaling = 0.001' to the Simulation section. Adding that command allows Isosurface solver to finish without a seg fault, but with a different warning message: WARNING:: IsosurfaceSolver: No potential elements found for isosurf...
by Rich_B
18 Jan 2024, 19:01
Forum: ElmerSolver
Topic: IsosurfaceSolver
Replies: 10
Views: 1145

Re: IsosurfaceSolver

Hello, Increase output level from 5 to 32, and the last three lines of the solver log become: IsosurfaceSolver: Found 670 potential elements IsosurfaceSolver: Creating mesh edges FindMeshEdges3D: Finding mesh edges in 3D mesh Creating a mesh and loading into ElmerGUI, shows 3 bodies. bodies_2_and_3....