FloTHERM hollow cylinder model

nirmal_singh · October 29, 2015, 21:43

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, 08:11

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, 08:37

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, 09:09

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, 18:55

Thanks Gabriel.

October 29, 2015, 21:43	FloTHERM hollow cylinder model	#1
nirmal_singh New Member nirmal singh rajput Join Date: Oct 2015 Posts: 23 Rep Power: 10	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

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October 30, 2015, 08:11		#2
Gabriel_C Member Gabriel Ciobanu Join Date: Jul 2011 Posts: 47 Rep Power: 14	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

October 30, 2015, 08:37		#3
nirmal_singh New Member nirmal singh rajput Join Date: Oct 2015 Posts: 23 Rep Power: 10	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.

October 30, 2015, 09:09		#4
Gabriel_C Member Gabriel Ciobanu Join Date: Jul 2011 Posts: 47 Rep Power: 14	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

November 1, 2015, 18:55		#5
nirmal_singh New Member nirmal singh rajput Join Date: Oct 2015 Posts: 23 Rep Power: 10	Thanks Gabriel.