Search found 162 matches

by Gary R
15 Nov 2021, 04:43
Forum: Contributed Cases
Topic: Visible waves generated by Helmholts Equation.
Replies: 1
Views: 2157

Re: Visible waves generated by Helmholts Equation.

A couple of corrections. The driver bc's should be changed to pressure wave1 = 10 and pressure wave2 = 0. The fluxes should be left blank. Attached is a new .brep file than is a complete slice of the horn. The half slice seemed to be introducing some artifacts. The new file also increases the air vo...
by Gary R
07 Nov 2021, 23:51
Forum: Installation & compilation
Topic: Problem with renderarea.cpp code
Replies: 1
Views: 1048

Problem with renderarea.cpp code

Hi all, Operating System: Debian GNU/Linux 11 KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2#include <QPainterPath> Kernel Version: 5.10.0-9-amd64 OS Type: 64-bit Processors: 4 × AMD FX(tm)-4350 Quad-Core Processor Memory: 15.6 GiB of RAM Graphics Processor: AMD CAICOS ...
by Gary R
07 Nov 2021, 03:04
Forum: Installation & compilation
Topic: Cannot use "Scripts" module which has not yet been found. (Void)
Replies: 1
Views: 1000

Re: Cannot use "Scripts" module which has not yet been found.

Found the problem. I apparently -somehow- added an "s" to the end of Script in the CMakeLists.txt file. Dumb move.
Gary R
by Gary R
07 Nov 2021, 00:58
Forum: Installation & compilation
Topic: Cannot use "Scripts" module which has not yet been found. (Void)
Replies: 1
Views: 1000

Cannot use "Scripts" module which has not yet been found. (Void)

I decided to get rid of my virtual machine and build a copy of Elmer on my Debian 11 machine. Operating System: Debian GNU/Linux 11 KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2 Kernel Version: 5.10.0-9-amd64 OS Type: 64-bit Processors: 4 × AMD FX(tm)-4350 Quad-Core P...
by Gary R
27 Oct 2021, 23:15
Forum: Contributed Cases
Topic: Visible waves generated by Helmholts Equation.
Replies: 1
Views: 2157

Visible waves generated by Helmholts Equation.

When I started to model a hyperbolic acoustic horn assembly, I wanted to illustrate the expanding wave fronts. My goal was to determine how much directionality would be introduced at higher acoustic frequencies. I had trouble finding examples that did this. Most Helmholtz analyses showed a general e...
by Gary R
26 Oct 2021, 22:59
Forum: External tools
Topic: ElmerGrid output garbage
Replies: 6
Views: 2756

Re: ElmerGrid output garbage

I finally got the bugs out of the problem and plan on including it in contributed cases. I'm also including a .png file of the run of a 5Khz problem. I hope this helps other people.

Gary R
adding attachments
HyperbolicHorn5Khz.png
(396.24 KiB) Not downloaded yet
by Gary R
25 Oct 2021, 04:32
Forum: General
Topic: Generating visible waves from an acoustic waveguide
Replies: 14
Views: 5513

Re: Generating visible waves from an acoustic waveguide

Well I finally got back to the project and got results. Though not quit the results I wanted. The horn seems to have some directionality at higher frequency. I will add the cif file and a screen shot as soon as I find out why I can't load attachments. I'm going to try setting up the same problem wit...
by Gary R
19 Oct 2021, 05:18
Forum: External tools
Topic: ElmerGrid output garbage
Replies: 6
Views: 2756

Re: ElmerGrid output garbage

Here is the rest of the .mesh files.

Gary R.
by Gary R
19 Oct 2021, 05:17
Forum: External tools
Topic: ElmerGrid output garbage
Replies: 6
Views: 2756

Re: ElmerGrid output garbage

Finally got access again. Thank you Peter Raback!!!
Attached are the .msh and the first .mesh file. The rest will follow.

Gary R