Search found 79 matches

by CrocoDuck
26 Apr 2020, 13:42
Forum: ElmerSolver
Topic: Conformal Meshes and Single Physics
Replies: 2
Views: 2124

Re: Conformal Meshes and Single Physics

Oh! I think I might be onto something. I think that by just exploding the geometry in solids and faces, and then using those to create groups in the mesh, the result is that the surface of the sphere gets "assigned" to the sphere and acts as a boundary for that body only, and not as a boun...
by CrocoDuck
25 Apr 2020, 21:22
Forum: ElmerSolver
Topic: Conformal Meshes and Single Physics
Replies: 2
Views: 2124

Conformal Meshes and Single Physics

Hi there! I am working on a simple Acoustic problem with the Helmholtz solver. It is a simple room with a sphere source inside. Normally I model the room with FreeCAD, and then I cut out a sphere from its volume. I then export the geometry as step, open up it with Salome, and mesh it. Then I will op...
by CrocoDuck
25 Apr 2020, 14:55
Forum: Installation & compilation
Topic: SIGSEGV on Arch Linux
Replies: 4
Views: 5022

SIGSEGV on Arch Linux

Hi, I installed Elmer on Arch Linux through this AUR Package . You can see how the software is built by referring to the build() function here . The software builds and install nicely, but it will not run simulations. Every time I try to solve a system, I get this: ELMER SOLVER (v 8.4) STARTED AT: 2...
by CrocoDuck
08 Mar 2020, 03:09
Forum: Contributed Cases
Topic: Modelling Acoustics with Open Source Software: The Series
Replies: 2
Views: 9971

Modelling Acoustics with Open Source Software: The Series

Hi Guys, I started a series of articles on my blog about modelling Acoustics with Open Source software. My blog is here: https://crocoduckoducks.github.io/. The articles are step-by-step tutorials on how to set up ElmerFEM acoustic problems, although other tools are covered such as FreeCAD, Salome P...
by CrocoDuck
08 Jun 2019, 00:12
Forum: External tools
Topic: Arch Linux Binary Installer for Salome
Replies: 3
Views: 8355

Re: Arch Linux Binary Installer for Salome

Hi! The script above has been broken for a long time. I finally fixed it, and I decided I will try to maintain it. It is now on GitHub: https://github.com/CrocoDuckoDucks/salome-arch-installer By the way, this page was essential to make it work again: https://www.salome-platform.org/forum/forum_9/47...
by CrocoDuck
13 Mar 2018, 18:13
Forum: ElmerSolver
Topic: [SOLVED] AcousticsSolver: Need Help to Set Up a Model
Replies: 5
Views: 4396

Re: AcousticsSolver: Need Help to Set Up a Model

Oh I see. Now I understand better the things reported on the Solver manual about bubble functions and stability. I think I can mark this as SOLVED, as the model is now set up :D

Thank you for your support!
by CrocoDuck
12 Mar 2018, 19:06
Forum: ElmerSolver
Topic: [SOLVED] AcousticsSolver: Need Help to Set Up a Model
Replies: 5
Views: 4396

Re: AcousticsSolver: Need Help to Set Up a Model

So, I did some experiments and I found that the model seems to work with this sif file only if my meshes are first order: Header CHECK KEYWORDS Warn Mesh DB "." "." Include Path "" Results Directory "results" $ f = 5 10 20 55 100 110 200 220 300 400 440 500 60...
by CrocoDuck
12 Mar 2018, 17:33
Forum: ElmerSolver
Topic: [SOLVED] AcousticsSolver: Need Help to Set Up a Model
Replies: 5
Views: 4396

Re: AcousticsSolver: Need Help to Set Up a Model

Perhaps I would first check that the boundary numbering of the Elmer mesh files certainly corresponds to the sif file and also check that the test case Thank you very much for your help Mika! I think that that was the reason. I loaded the unv filte into ElmerGUI, saved the resulting project in a ne...
by CrocoDuck
09 Mar 2018, 17:04
Forum: ElmerSolver
Topic: [SOLVED] AcousticsSolver: Need Help to Set Up a Model
Replies: 5
Views: 4396

[SOLVED] AcousticsSolver: Need Help to Set Up a Model

Hi guys! So, I am trying to set up a simple model using the AcousticsSolver . As a first step, since I never used the solver, I am trying to use the simplest possible parameters. However, I can only get trivially 0 solutions. Maybe you can help me understand what I am doing wrong. The model is just ...
by CrocoDuck
03 Jan 2017, 15:48
Forum: General
Topic: Output variable for Helmholtz Solver
Replies: 6
Views: 5035

Re: Output variable for Helmholtz Solver

Hi there! I used the Helmholtz solver a few times and I am slightly confused. In my experience, the results should be pressure wave 1 and pressure wave 2, two scalar fields. Is the pressure wave vector a new feature?