Autodesk Simulation CFD

[#1]

Hello

I am having trouble in using Extrude mesh for one of the models I am doing.

Please have a look at the attached sketch.

Part #4 and #7 are long pipes, with no major gradients, and I want to use Extrude mesh for these. Beware that the axis of part #7 is no along -Y direction but is inclined at 45 deg. to -Y in XY plane.

Here, I can use extrude mesh to part #4, but not to part #7. I tried using sweep and extrusion both to create #7.

The model conforms to all "Extrusion Guidelines" documented on wiki.

#Uniform c/s

#Linear extrusion

#3D

#Uniform surfaces in the direction of extrusion

#Ends parallel

Can someone help please?

Without extrusion the mesh cell-count will increase significantly.

Thanks

OJ

[#2]

Anyone, please?

Regards
OJ

[#3]

There is no reason why this should not work, although I have seen this occur before, with no explanation. Have you tried modelling Part 7 again?

[#4]

Yes, I tried extrusion and sweep both and retried. No luck!

Without extrude, the cell-count explodes in those long extensions. This limits the refinement degree at the core region of interest.

BTW, I use multibody modelling to create the flow domain and create solids out of the features in the part model. Then I export these solids as parts into assembly using "Make Components". I don't individually create the parts and then assemble them. This is a more efficient way. Don't know if this information is of any use though.

Regards

Omkar.

[#5]

Hi Omkar,

Would you like to share the pack and go? I can certainly take a look.

If so, please could you start up a new case in the subscription center and we will see what we can do.

Kind regards,

Jon

[#6]

Sure Jon.  I will submit the model through the subscription center. Hope Autodesk honour the confidentiality.

Regards

OJ.

[#7]

Do you want me to share cfz file, or cfdst file?

OJ

[#8]

Hi Omkar,

Yes, we will always honour our confidentiality agreements. Much better to use a case for this exact reason

Actually, it would be better to have the CAD, so a 'Pack And Go' from Inventor would be perfect!