Splitting tube face into two

milton.tafadzwa · March 16, 2009, 08:43

Dear friends
I have created a tube with height 1420mm and radius 37mm. I have split the tube face into two (lengthwise at centre) so that I have a top face (top wall) and a bottom face (bottom wall). This would allow me to apply two different boundary conditions on the same tube. I exported the mesh but when I read the case only one face (bottom wall) is being shown in Fluent.

Please can you assit me. How do I go about so that all the walls will be visible in Fluent.

Thank you,
Milton

-mAx- · March 16, 2009, 09:21

did you get a warning while you exported the mesh?
in Fluent how many wall-BC do you have?

milton.tafadzwa · March 16, 2009, 09:41

No I did not receive any warning. I have three wall-BC the top wall, bottom wall and open end on one end of the tube.

-mAx- · March 16, 2009, 11:41

ok that means that you set all the extern faces with BC.
If you missed to set any BC, Fluent should create a default "wall" BC.
When you display the grid, you didn't see the top wall? (display faces, enable light and rotate)

milton.tafadzwa · March 16, 2009, 19:22

The top wall is there on the grid but is missing on the list surfaces, so am unable to set boundary conditions on it. I did create it in Gambit.

-mAx- · March 17, 2009, 00:57

but you said that the top wall is present as BC in Fluent

Quote:

Originally Posted by milton.tafadzwa

I have three wall-BC the top wall, bottom wall and open end on one end of the tube.

Anyway, can you provide me your *.dbs file (with rapidshare), I will ltake a look at it

milton.tafadzwa · March 17, 2009, 01:37

Thanks, I have located where I was making a mistake and the problem is solved.
For interest sake how do I go about to send the .dbs file. This is my first time using this software.

-mAx- · March 17, 2009, 02:24

you can direct emailed me the dbs file if it is less than 10MB(click on my name and you will have the opportunitiy to mail me)
Or you can upload it on a share server like rapidshare (www.rapidshare)
, and you just have to give the link you receive once it is uploaded

March 16, 2009, 08:43	Splitting tube face into two	#1
milton.tafadzwa New Member Mavis Milton Join Date: Mar 2009 Posts: 10 Rep Power: 17	Dear friends I have created a tube with height 1420mm and radius 37mm. I have split the tube face into two (lengthwise at centre) so that I have a top face (top wall) and a bottom face (bottom wall). This would allow me to apply two different boundary conditions on the same tube. I exported the mesh but when I read the case only one face (bottom wall) is being shown in Fluent. Please can you assit me. How do I go about so that all the walls will be visible in Fluent. Thank you, Milton

March 16, 2009, 09:41		#3
milton.tafadzwa New Member Mavis Milton Join Date: Mar 2009 Posts: 10 Rep Power: 17	No I did not receive any warning. I have three wall-BC the top wall, bottom wall and open end on one end of the tube. Last edited by milton.tafadzwa; March 16, 2009 at 09:45. Reason: left out some information

March 17, 2009, 01:37		#7
milton.tafadzwa New Member Mavis Milton Join Date: Mar 2009 Posts: 10 Rep Power: 17	Thanks, I have located where I was making a mistake and the problem is solved. For interest sake how do I go about to send the .dbs file. This is my first time using this software. Last edited by milton.tafadzwa; March 17, 2009 at 01:39. Reason: left some information

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March 16, 2009, 09:21		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	did you get a warning while you exported the mesh? in Fluent how many wall-BC do you have?

March 16, 2009, 11:41		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	ok that means that you set all the extern faces with BC. If you missed to set any BC, Fluent should create a default "wall" BC. When you display the grid, you didn't see the top wall? (display faces, enable light and rotate)

March 16, 2009, 19:22		#5
milton.tafadzwa New Member Mavis Milton Join Date: Mar 2009 Posts: 10 Rep Power: 17	The top wall is there on the grid but is missing on the list surfaces, so am unable to set boundary conditions on it. I did create it in Gambit.

March 17, 2009, 02:24		#8
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	you can direct emailed me the dbs file if it is less than 10MB(click on my name and you will have the opportunitiy to mail me) Or you can upload it on a share server like rapidshare (www.rapidshare) , and you just have to give the link you receive once it is uploaded