OpenFoam, Propeller, SimpleFoam

A subforum specific to the development of the OpenFoam-based workbenches ( Cfd https://github.com/qingfengxia/Cfd and CfdOF https://github.com/jaheyns/CfdOF )

Moderator: oliveroxtoby

SajjaD
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Joined: Sat May 12, 2018 7:01 pm

OpenFoam, Propeller, SimpleFoam

Postby SajjaD » Sat May 12, 2018 7:06 pm

Hello
I'm solving propeller wake by simpleFoam. But there is an error which is in the below:

Time step continuity errors : sum local = 9.00875e+65, global = 2.31536e+52 :shock:, cumulative = 1.8639e+52
So What may cause this problem? How can I fix that?
Thank you all.
chrisb
Posts: 17549
Joined: Tue Mar 17, 2015 9:14 am

Re: OpenFoam, Propeller, SimpleFoam

Postby chrisb » Sat May 12, 2018 9:45 pm

Moved to help forum.
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NormandC
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Location: Québec, Canada

Re: OpenFoam, Propeller, SimpleFoam

Postby NormandC » Sat May 12, 2018 10:19 pm

Chris, isn't the Help forum about FreeCAD? This topic has no relevance to FreeCAD. Unless the propeller was designed in FreeCAD, I don't see how this question has any relevance at all to any of the FreeCAD forums.
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NormandC
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Re: OpenFoam, Propeller, SimpleFoam

Postby NormandC » Sat May 12, 2018 10:21 pm

I mean, at some point we have to draw a line, if it's not even remotely related to FreeCAD, it has no place on the FreeCAD forum, period.
chrisb
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Re: OpenFoam, Propeller, SimpleFoam

Postby chrisb » Sat May 12, 2018 11:05 pm

NormandC wrote:
Sat May 12, 2018 10:19 pm
Chris, isn't the Help forum about FreeCAD? This topic has no relevance to FreeCAD. Unless the propeller was designed in FreeCAD, I don't see how this question has any relevance at all to any of the FreeCAD forums.
Oops, I'm afraid I moved the wrong topic. Now looking for the other first post. :oops:
Now I'm unsure if this belongs to open discussion or FEM.
emills2
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Joined: Tue Apr 28, 2015 11:23 pm

Re: OpenFoam, Propeller, SimpleFoam

Postby emills2 » Sun May 13, 2018 6:17 pm

chrisb wrote:
Sat May 12, 2018 11:05 pm
Now I'm unsure if this belongs to open discussion or FEM.
CFD sub forum under FEM. Openfoam is accessible in FreeCAD through addon Cfdof.
chrisb
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Re: OpenFoam, Propeller, SimpleFoam

Postby chrisb » Sun May 13, 2018 11:24 pm

moved it again.
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oliveroxtoby
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Re: OpenFoam, Propeller, SimpleFoam

Postby oliveroxtoby » Mon May 14, 2018 6:18 am

SajjaD wrote:
Sat May 12, 2018 7:06 pm
Hello
I'm solving propeller wake by simpleFoam. But there is an error which is in the below:

Time step continuity errors : sum local = 9.00875e+65, global = 2.31536e+52 :shock:, cumulative = 1.8639e+52
So What may cause this problem? How can I fix that?
Thank you all.
Your simulation has diverged. This can occur for many different reasons - it is impossible to give a simple answer. If you are able to share your FreeCAD file I can try to have a quick look at it.
Please provide all the information requested in this post before reporting problems with CfdOF.