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by wafi
Fri Mar 08, 2019 11:00 am
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 36328

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

hm Thomas the parts above water are not very interesting, I created this file via the gf file (that`s an input file for hydrostatic calculation) and I left the lines above water for testing the model including heeling. The normal way would be to cut the hull above waterline in the situation of heeli...
by wafi
Wed Mar 06, 2019 9:43 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 36328

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

hm Thomas will drink a Jever, I heared the rumor that this should improve the nice english or something like that :mrgreen: Skoll 8-) Please note attached, only the hull incl keel and rudder and 15 degree heeling. In general I aggree with your point of view to use freecad as direct input to work wit...
by wafi
Wed Mar 06, 2019 4:56 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 36328

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

hm Thomas the flow of cause would be 4,8m/s for my example due to have the max velocity of the boat. The problem indeed is the constant flow around the hull and I think that there must be another trick, if I compare this with the openfoam tutorials as Wigley hull etc. I just trying a new run with in...
by wafi
Tue Mar 05, 2019 7:46 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 36328

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

Hi Thomas

it`s more the problem you`ve solved with the pirat in the german forum. I tried to use that example, but it seems that the program changed a little bit.

regards
Peter
by wafi
Sun Mar 03, 2019 6:56 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 36328

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

here a similar modell, but without the boat itself, instead a simpel box to substitute. Effect is nearly same as with a real boat.
by wafi
Sun Mar 03, 2019 3:17 pm
Forum: CfdOF / CFD
Topic: Computational Fluid Dynamics (CFD) workbench using OpenFOAM
Replies: 272
Views: 36328

Re: Computational Fluid Dynamics (CFD) workbench using OpenFOAM

hm ... I do not find the mistake ... What I trying to do is to have a boat in water with a heeling angle and a drift angle. So far so good. The initialization zone is defined by a box with water and in this case 4,8m/s x velocity, the initialization zone is about 5m deep, starting from waterline of ...
by wafi
Sat Feb 23, 2019 8:12 pm
Forum: Forum in Deutsch
Topic: CFD
Replies: 174
Views: 6316

Re: CFD

Moin Ihr`s also erstmal, ich finde es spannend, was ihr so auf die Beine stellt. Klasse. Openfoam nutze ich ... nicht besonders häufig ... aber dann um entweder Schiffswiderstand zu ermitteln oder, noch etwas komplizierter Schiffsbewegungen darzustellen. Letzteres geht nur mit dynamischen Netzen, zu...
by wafi
Mon Feb 18, 2019 4:17 pm
Forum: CfdOF / CFD
Topic: meshing problem
Replies: 21
Views: 1411

Re: meshing problem

Hi triplus I have the daily version installed via PPA and it should be up to date, but unfortunately putting in the command in the python window: >>> from PySide import QtUiTools Traceback (most recent call last): File "<input>", line 1, in <module> File "/usr/lib/freecad-daily/Ext/PySide/QtUiTools....
by wafi
Wed Feb 13, 2019 8:11 am
Forum: CfdOF / CFD
Topic: meshing problem
Replies: 21
Views: 1411

Re: meshing problem

Hi triplus,

still the failure is same. For time being it impossible to work with FC daily, only appimage is working. Qt tools are not available.

best regards
Peter
by wafi
Wed Jan 30, 2019 12:24 pm
Forum: Install / Compile
Topic: FC 0.18.15638 AppImage dosn't start
Replies: 15
Views: 691

Re: FC 0.18.15638 AppImage dosn't start

Hi triplus
thank you very much, with your advice the AppImage is starting now and all functions which are not available at present freecad versions are available on the Appimage version. It seems that this version is significant slower, but .. ok, that`s life.

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