CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > ANSYS Meshing & Geometry

[ICEM] non positive volume

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree3Likes
  • 1 Post By diamondx
  • 1 Post By diamondx
  • 1 Post By diamondx

Reply
 
LinkBack Thread Tools Display Modes
Old   August 14, 2013, 13:06
Default non positive volume
  #1
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Dear all,
I have two files here.One of them(before wall) is before defining the skin of inner pipe as wall and the other is after that(Faces are associated to surface for this purpose) and the only difference between this two files is this association. the first one will export to fluent successfully while the second one will export to fluent with warning of non-positive volume.
Please help me. It 's made me confused.
https://hotfile.com/dl/239611896/c32..._wall.zip.html

https://hotfile.com/dl/239612371/894..._wall.zip.html
nabaen is offline   Reply With Quote

Old   August 14, 2013, 16:16
Default
  #2
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Canada
Posts: 1,291
Blog Entries: 23
Rep Power: 20
diamondx will become famous soon enough
You do have negative elements, here is why:



I circled in blue the edges responsible for that, don't worry about it too much, minor problem.... come back to us if you can't fix it
nabaen likes this.
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   August 15, 2013, 01:51
Default
  #3
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Dear Ali,
Thank you so much for your reply.
Please help me to solve it.I am a bignner.Actually I couldn't understand what you mean.
nabaen is offline   Reply With Quote

Old   August 15, 2013, 14:55
Default
  #4
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Canada
Posts: 1,291
Blog Entries: 23
Rep Power: 20
diamondx will become famous soon enough
you have a cylinder called wall , what'S inside it ??? is it empty ??
nabaen likes this.
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   August 16, 2013, 00:55
Default
  #5
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Quote:
Originally Posted by diamondx View Post
you have a cylinder called wall , what'S inside it ??? is it empty ??
Thank you . .
Fluid flows in both cylinder.(Inside of the cylinder that called wall will be as interior and its skin will be only as wall)
nabaen is offline   Reply With Quote

Old   August 16, 2013, 12:26
Default
  #6
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
no one can not help me?I have to solve my problem soon.
Please give me a solution.
nabaen is offline   Reply With Quote

Old   August 16, 2013, 12:48
Default
  #7
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
nabaen is offline   Reply With Quote

Old   August 16, 2013, 12:54
Default
  #8
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Canada
Posts: 1,291
Blog Entries: 23
Rep Power: 20
diamondx will become famous soon enough
https://dl.dropboxusercontent.com/u/...ing%20wall.zip
nabaen likes this.
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   August 16, 2013, 13:10
Default
  #9
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Thank you so much.Would you please explain for me how did you improve it? I have to do it myself
nabaen is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Problem of simulating of small droplet with radius of 2mm liguifan OpenFOAM Running, Solving & CFD 5 June 3, 2014 02:53
mpirun interFoam very stable --> then blows up ghadab OpenFOAM Running, Solving & CFD 3 October 27, 2013 11:34
non-orthogonal faces and incorrect orientation? nennbs OpenFOAM Native Meshers: blockMesh 7 April 17, 2013 05:42
Non positive volume exist - How to find where ??!! Cyril FLUENT 34 January 2, 2013 09:41
FloWorks (Flow Express) Volume Goal Setting Issue rbigelow FloEFD, FloWorks & FloTHERM 1 November 16, 2009 02:32


All times are GMT -4. The time now is 08:52.