Search found 46 matches

by CrocoDuck
08 Mar 2020, 03:09
Forum: Contributed Cases
Topic: Modelling Acoustics with Open Source Software: The Series
Replies: 0
Views: 716

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: 4046

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: 1508

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: 1508

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 55 100 110 200 220 300 400 440 500 600 700 800 880 900 1000 1100 1150 1200 13...
by CrocoDuck
12 Mar 2018, 17:33
Forum: ElmerSolver
Topic: [SOLVED] AcousticsSolver: Need Help to Set Up a Model
Replies: 5
Views: 1508

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: 1508

[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: 2149

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?
by CrocoDuck
13 Sep 2016, 11:14
Forum: ElmerSolver
Topic: 3D Helmholtz Structure
Replies: 12
Views: 4303

Re: 3D Helmholtz Structure

Thank you Peter, this clarifies a lot. So, if I get it properly, the air volume is being driven by the displacement of the bar though as if varying sinusoidally in time at the specified bar's eigenfrequency?
by CrocoDuck
12 Sep 2016, 18:22
Forum: ElmerSolver
Topic: 3D Helmholtz Structure
Replies: 12
Views: 4303

3D Helmholtz Structure

Hi there! I am trying to replicate this case , but simplified as a single aluminium bar in air. I couldn't get it to work until I noticed that in each Helmholtz Structure sif I read (also in the tests folder ) there is this line: Displacement Variable EigenMode = Integer 1 From the Models Manual : D...
by CrocoDuck
18 Aug 2016, 11:24
Forum: Bug reports
Topic: Harmonic Analysis: possible Bug in VTU exporter
Replies: 2
Views: 2183

Re: Harmonic Analysis: possible Bug in VTU exporter

Hi Peter, thank you very much! I will test the devel branch at my earliest occasion and report back.