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-   -   FloTHERM hollow cylinder model (https://www.cfd-online.com/Forums/floefd-floworks-flotherm/161845-flotherm-hollow-cylinder-model.html)

nirmal_singh October 29, 2015 22:43

FloTHERM hollow cylinder model
 
Hello eveyone!

Can anyone help with creation of hollow cylinder model to which I can apply thermal boundary conditions!

I have tried making a solid cylinder but hole is deactivated at the same time, so unable to create a hollow structure.

Thanks in advance :)

Gabriel_C October 30, 2015 09:11

hi,

see if this is what you want: http://webparts.mentor.com/flotherm/...parts/tube.jsp.
If not please describe the "problem" more in detail. :)

Best regards, Gabriel

nirmal_singh October 30, 2015 09:37

Thanks Gabriel...!
Thanks for the solution. But it seems to be a good approximation by considering just 12 facets for tube which may lead to a good amount of error. Can you please help into this?

Thanks.

Gabriel_C October 30, 2015 10:09

Hi,

I don't see a problem in 12 facets. Try 12, then 8 then 4 to compare the differences. Try to keep cross section and total area equal between models.

In the end a model is just a model. It's supposed to model the real world but it could "look" a little different :)


Play a lot with the model, it's good to understand all the physics behind, Gabriel

nirmal_singh November 1, 2015 19:55

Thanks Gabriel. :)


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