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-   -   [ICEM] Boundary condition is lost when export to Fluent . (http://www.cfd-online.com/Forums/ansys-meshing/97511-boundary-condition-lost-when-export-fluent.html)

DungPham February 19, 2012 01:48

Boundary condition is lost when export to Fluent ( attached image )
 
Hi everyone ! As title

That is a part of small cylinder ( submerge in large cylinder ) . Can you show me the wrong spot ?



http://ni2.upanh.com/b5.s25.d1/8918f...8772.block.pnghttp://ni4.upanh.com/b3.s13.d3/3bf1d...74.cutplan.pnghttp://ni6.upanh.com/b4.s15.d1/6e735...rttofluent.png

Here , i have ICEM files
http://www.box.com/s/pelth7k8704vlxbdy7j3

Thanks for reading :D

Far February 19, 2012 11:29

modified files (cyli_mod) http://www.4shared.com/rar/pSIUuhhK/Smallcylinder.html

Just changed name of solid to fluid (should not make any difference) and deleted few internal surfaces (thin wall, not needed in this case) and every thing is fine now. Also divided wall into wall1, wall2 and wall3 depending on curvature change.

selected pics:
http://img72.imageshack.us/img72/9987/cylinder1.png
http://img192.imageshack.us/img192/5254/cylinder2.png
http://img195.imageshack.us/img195/295/cylinder3.png

Together we can learn better

DungPham February 19, 2012 14:25

Quote:

Originally Posted by Far (Post 345189)
modified files (cyli_mod) http://www.4shared.com/rar/pSIUuhhK/Smallcylinder.html

Just changed name of solid to fluid (should not make any difference) and deleted few internal surfaces (thin wall, not needed in this case) and every thing is fine now. Also divided wall into wall1, wall2 and wall3 depending on curvature change.

selected pics:


Together we can learn better


First ! I appreciate your help :D

next...the problem still hasn't solved . It will be easier when you watch the flash file below ( can open by browser ...IE, Chrome ... :D )

compare on ICEM & Ansys Meshing .
Code:

http://www.box.com/s/nne68io62ajx7ciyqll0

Far February 19, 2012 14:34

if you are talking about interior then interior name is changed by icem and you get the different name . For example it is int_fluid instead of just fluid, just change the name in boundary condition panel

http://img27.imageshack.us/img27/953/cylinder4.png
http://img836.imageshack.us/img836/2418/cylinder5.png

Far February 19, 2012 16:18

Quote:

next...the problem still hasn't solved . It will be easier when you watch the flash file below ( can open by browser ...IE, Chrome ... )
Which meshing is correct: ANSYS meshing mesh or ICEM mesh?

DungPham February 19, 2012 20:13

Quote:

Originally Posted by Far (Post 345204)
Which meshing is correct: ANSYS meshing mesh or ICEM mesh?

ANSYS meshing mesh is correct. As my video, the wall include a part of small cylinder that submerge in large cylinder ( it is internal wall )


The problem has solved . I just create thin wall block :D

and other way ?

thank again !

Far February 20, 2012 13:52

Quote:

I just create thin wall block
What do you mean by thin wall block? are you talking about shared wall?

tin and blk http://www.4shared.com/rar/-DHDr2qt/Smallcylinder2.html
http://img850.imageshack.us/img850/1283/cylinder6.png
http://img94.imageshack.us/img94/3550/cylinder7.png

DungPham February 20, 2012 21:34

Quote:

Originally Posted by far (Post 345379)
what do you mean by thin wall block? Are you talking about shared wall?

Tin and blk http://www.4shared.com/rar/-dhdr2qt/smallcylinder2.html


Yes , it is shared wall :D

but why I can't creat wall4 like you ! , "Volume part" in "associate face to surface" must be a part of blocks :confused:

http://ni7.upanh.com/b1.s25.d1/04858...7487.khkjh.png

Far March 27, 2012 00:49

For specifying the inner wall, the correct procedure is here...
http://www.cfd-online.com/Forums/ans...nner-wall.html


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