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by julieng
Sat Dec 19, 2020 1:21 pm
Forum: CfdOF / CFD
Topic: Can’t parallel the solver
Replies: 13
Views: 1775

Re: Can’t parallel the solver

Ok it works!

Downloaded on https://www.microsoft.com/en-us/downloa ... x?id=52981, installed the the .exe file and it ok.
by julieng
Sat Dec 19, 2020 1:01 pm
Forum: CfdOF / CFD
Topic: Save a STL file with multi-regions
Replies: 17
Views: 9181

Re: Save a STL file with multi-regions

Hello,

I am looking for a (quite simple) procedure via FreeCAD generating STL files and surface/ Volume patches to mesh multibodies geometry using snappyHexMesh.
Is there something already existing?
I found a lot of solutions on cfdonline but I am a little bit lost..

Best regards

Julien
by julieng
Sat Dec 19, 2020 12:57 pm
Forum: CfdOF / CFD
Topic: Can’t parallel the solver
Replies: 13
Views: 1775

Re: Can’t parallel the solver

Thank you for your answer. I am sorry but I don't know where to find the link to download the good MSMPI version via the bluecfd core website. Do I have to install it like a stand alone software or do I need to link with bluecfd? The version of MSMPI I have (which doesn't work) is cuurrently 7.1. Ju...
by julieng
Sat Dec 19, 2020 12:48 pm
Forum: CfdOF / CFD
Topic: Chip cooling ==> new solver available
Replies: 29
Views: 1847

Re: Chip cooling ==> new solver available

You are welcome, glad to contribute.
by julieng
Sat Dec 19, 2020 7:55 am
Forum: CfdOF / CFD
Topic: Can’t parallel the solver
Replies: 13
Views: 1775

Re: Can’t parallel the solver

Hello, I have the problem when running in parallel cfdOF with bluecfdcore. ERROR: Failed to post close command error 1726 ERROR: unable to tear down the job tree. exiting... I see that the solution is to uninstall/ reinstall bluefcd core but I am afraid to loose my set up with swak4Foam for example ...
by julieng
Fri Dec 18, 2020 8:09 pm
Forum: CfdOF / CFD
Topic: Chip cooling ==> new solver available
Replies: 29
Views: 1847

Re: Chip cooling ==> new solver available

Hello, The case is attached without the polyMesh folder (too big). The Mesh has been generated with Salome 9.5. The residual control < 10^(-6) for h. It converges in 1800 iterations https://zupimages.net/up/20/51/f3id.jpg In the controlDict file, the postreatment for wall power takes into account th...
by julieng
Wed Dec 16, 2020 11:02 pm
Forum: CfdOF / CFD
Topic: Chip cooling ==> new solver available
Replies: 29
Views: 1847

Re: Chip cooling ==> new solver available

Hello, Let me share my results on buoyantSimpleFoam solver. First I have mesh with Salome a 3 parts duct, 1000 mm with adiabatic wall for the mixing of the fluid, 2000 mm for the heat exchange zone (heat transfer coef) and 1000 mm more of adiabatic wall for outlet (I read this tip on cfdonline forum...
by julieng
Sun Dec 06, 2020 8:06 am
Forum: Forum français
Topic: linear pattern mirror etc
Replies: 16
Views: 441

Re: linear pattern mirror etc

Bonjour,

On dirait que le multibody va arriver finalement

https://forum.freecadweb.org/viewtopic.php?f=19&t=52221

On verra.

Bon dimanche
by julieng
Sun Nov 29, 2020 8:40 pm
Forum: CfdOF / CFD
Topic: Chip cooling ==> new solver available
Replies: 29
Views: 1847

Re: Chip cooling ==> new solver available

To begin to confirm the simulation.
I have done an excel sheet with Colburn assumption in order to calculate the Nusselts number.
I obtain with the case parameters for temp outlet 443 K which is pretty close to the commercial software value.
by julieng
Sun Nov 29, 2020 8:03 pm
Forum: CfdOF / CFD
Topic: Chip cooling ==> new solver available
Replies: 29
Views: 1847

Re: Chip cooling ==> new solver available

Thank you thschrader for your answer, y+ value is dependant of what you want to calculate with your simulation. For drag and lift force (as describe in the video that you advise to me) the y+ value needs to be less than 5. It is also the case for energy exchange near walls. The tutorial that you wan...

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