Search found 1279 matches

by HoWil
Mon Aug 01, 2022 12:09 pm
Forum: FEM
Topic: fcFEM - FEA from start to finish
Replies: 288
Views: 68037

Re: fcFEM - FEA from start to finish

HarryvL wrote: Thu Feb 07, 2019 5:12 pmYup
Really cool.
Do you already have any information regarding performance compared to ccx or Elmer? E.g. testing the example from start page and look at the time for solving the model.
by HoWil
Mon Aug 01, 2022 10:53 am
Forum: FEM
Topic: GSoC2020, FEM: extend examples
Replies: 586
Views: 87026

Re: GSoC2020, FEM: extend examples

Watt as dimension is dependent on the mass the length and time see https://de.wikipedia.org/wiki/Watt_(Einheit). If you insert Watt/m² the dependency on the length is gone and everything is relatively easy. If you have to use Watt/kg as input the dependency on the length is still present and you hav...
by HoWil
Mon Aug 01, 2022 10:50 am
Forum: FEM
Topic: GSoC2020, FEM: extend examples
Replies: 586
Views: 87026

Re: GSoC2020, FEM: extend examples

-> tricky stuff! No it is not .... really :D 8-) don't understand. i need to know what code reads the Elmer vtu result. You used "Surface heat flux in W/m^2" in your model. We need a entry for body heat source with "W/kg" (lets call it energy per mass or density related heat flu...
by HoWil
Sun Jul 31, 2022 8:51 pm
Forum: FEM
Topic: GSoC2020, FEM: extend examples
Replies: 586
Views: 87026

Re: GSoC2020, FEM: extend examples

Please see the explanation in my post (especially the EDIT) after the original post https://forum.freecadweb.org/viewtopic.php?p=422624#p422624. The main thing here is that is is W/kg not W/m², so you have to scale it correctly. BR, HoWil ps.: May I do some advertising for the introduction of Elmer-...
by HoWil
Sun Jul 31, 2022 1:32 pm
Forum: FEM
Topic: GSoC2020, FEM: extend examples
Replies: 586
Views: 87026

Re: GSoC2020, FEM: extend examples

also works on stable via snap EDIT: Maybe this is now irrelevant but the unit system is set to 'mm/kg/s/degree'. OS: Ubuntu Core 20 (ubuntu:GNOME/ubuntu) Word size of FreeCAD: 64-bit Version: 0.20.29177 (Git) Snap 161 Build type: Release Branch: tag: 0.20 Hash: 68e337670e227889217652ddac593c93b5e8dc...
by HoWil
Sun Jul 31, 2022 1:16 pm
Forum: FEM
Topic: GSoC2020, FEM: extend examples
Replies: 586
Views: 87026

Re: GSoC2020, FEM: extend examples

Here the model for Tutorial1 for the body heat source Hello HoWil, I am currently checking if the Elmer support is still OK and took as start this file. Sadly, it does not work anymore: - the value for the BodyHeatSource is zero in your file does not have this problem. - when I set it to 0.01 as th...
by HoWil
Sun Jul 31, 2022 12:36 pm
Forum: FEM
Topic: GSoC2020, FEM: extend examples
Replies: 586
Views: 87026

Re: GSoC2020, FEM: extend examples

bernd wrote: Sun Jul 31, 2022 8:44 am Would you post a link to the post?
The link is embeded into the arrow next to "HoWil wrote:"
by HoWil
Tue Jun 21, 2022 5:51 am
Forum: Users Showcase
Topic: hair dryer fan
Replies: 10
Views: 4461

Re: hair dryer fan

Nice. This reminds me about trying to repair a hair dryer (from Brown) years ago. But I was not successful because one of the blades/paddles was broken and I did not know how to fix it. Do you want to print the part, and how? Temperatures are high inside the dryer, right?! Please let us know if you ...
by HoWil
Tue Jun 21, 2022 5:38 am
Forum: Open discussion
Topic: FreeCAD on the web
Replies: 833
Views: 434150

Re: FreeCAD on the web

Hi, First of all, this is not my project and I am not associated with it in any way. https://www.welcome-werkstatt.de/projekte/trudetrailer Its buried a bit under links but this cool project uses freecad. Under 'Hier geht's zum Download ' you find .zip files of the FC-parts and drawings done in FC. ...
by HoWil
Tue Mar 22, 2022 8:22 pm
Forum: FEM
Topic: Elmer electrostatics FEM
Replies: 119
Views: 24735

Re: Elmer electrostatics FEM

I am sorry but I do not have the time to explain it in detail (which needs a lot of time to do so). The unit system always has to be consistent. What you try will mix up the systems. FC usually uses mm internally. The easiest way to get ISO-units is to switch the unit-system of FC to mkgs. I do not ...