Search found 2367 matches

by kevinarden
19 May 2024, 12:36
Forum: General
Topic: Sound Damping variable distance in Elmer Helmholtz
Replies: 2
Views: 68

Re: Sound Damping variable distance in Elmer Helmholtz

The only way I could get it to make a difference was

Body Force 1
Name = "Divergence Damping"
Pressure = Variable Coordinate 1, Coordinate 2
Real MATC "20e-6 * 10^((20 * log(sqrt(tx(0)^2 + tx(1)^2))/log(10) + 11) / 20)"
End
by kevinarden
19 May 2024, 12:32
Forum: ElmerSolver
Topic: Variable boundary conditon
Replies: 2
Views: 26

Re: Variable boundary conditon

Boundary Condition 1 Target Boundaries(3) = 1 2 3 Variable Potential Real Procedure "timestep" "timestep" End doesn't do anything so the module never gets called it should be something like Boundary Condition 1 Target Boundaries(3) = 1 2 3 Potential = Variable Time Real Procedure...
by kevinarden
17 May 2024, 18:55
Forum: ElmerGUI
Topic: H-B curve data input error
Replies: 3
Views: 51

Re: H-B curve data input error

No it needs to be in the working directory with the sif and mesh files.
by kevinarden
17 May 2024, 11:47
Forum: ElmerGUI
Topic: H-B curve data input error
Replies: 3
Views: 51

Re: H-B curve data input error

I would use the free text input field. You can either put the whole material in the text file or just the curve.
usefreetext.png
usefreetext.png (35.91 KiB) Viewed 45 times
by kevinarden
16 May 2024, 12:01
Forum: ElmerSolver
Topic: WhitneyAVHarmonicSolver - "unphysical" solution
Replies: 11
Views: 276

Re: WhitneyAVHarmonicSolver - "unphysical" solution

I use salome, and in this case I mesh the end with quads and extrude it into solids. If you create groups of the quads, they extrude into the different bodies.
by kevinarden
15 May 2024, 13:12
Forum: ElmerSolver
Topic: WhitneyAVHarmonicSolver - "unphysical" solution
Replies: 11
Views: 276

Re: WhitneyAVHarmonicSolver - "unphysical" solution

Mesh Quality looks like an improvement on the original project_v2
hexamesh.png
(67.6 KiB) Not downloaded yet
ends.png
(483.65 KiB) Not downloaded yet
by kevinarden
15 May 2024, 11:39
Forum: Contributed Cases
Topic: Filled rectangular wave guide (VectorHelmholtz)
Replies: 8
Views: 463

Re: Filled rectangular wave guide (VectorHelmholtz)

Only if you compile your own version of the solver
by kevinarden
14 May 2024, 12:13
Forum: ElmerSolver
Topic: WhitneyAVHarmonicSolver - "unphysical" solution
Replies: 11
Views: 276

Re: WhitneyAVHarmonicSolver - "unphysical" solution

Showing a mid-plane cut with a plot along the length.
plot.png
(83.56 KiB) Not downloaded yet
by kevinarden
14 May 2024, 11:49
Forum: ElmerSolver
Topic: Can't I use a 2nd order mesh with the acoustic solver?
Replies: 4
Views: 81

Re: Can't I use a 2nd order mesh with the acoustic solver?

If you run the test case
https://github.com/ElmerCSC/elmerfem/tr ... HarmonicNS

but try second order elements with
ElmerGrid 1 2 tube.grd -increase

than the same error appears.