|
[Sponsors] |
September 17, 2013, 06:12 |
negative volume
|
#1 |
New Member
rajendra singh
Join Date: Jul 2013
Posts: 11
Rep Power: 12 |
Hiiii,
Can anyone give me some idea of negative volume? when i m importing my mesh from icem to fluent its give negative volume. |
|
September 17, 2013, 08:04 |
|
#2 |
Senior Member
A-A Azarafza
Join Date: Jan 2013
Posts: 226
Rep Power: 14 |
Hi
I don't know much about it. As far as I know, it means that negative volume exists in your model and you didn't mesh the geometry properly. But one thing is sure. You have to reconsider your model and mesh it again.
__________________
Regard yours |
|
September 17, 2013, 09:21 |
|
#3 |
New Member
rajendra singh
Join Date: Jul 2013
Posts: 11
Rep Power: 12 |
Thanks for ur concern Azarafza...
I m meshing airfoil wing in icem. blocks with negative volume is found at trailing edge of the airfoil. what r d possible method to remove it? Since i m new in icem cfd i didnt knew it. |
|
September 17, 2013, 11:17 |
|
#4 |
Senior Member
A-A Azarafza
Join Date: Jan 2013
Posts: 226
Rep Power: 14 |
Just try to change the space between meshes in the mentioned edges. Use structured mesh if you can,as well. Even change the mesh scheme. Just one more thing, do you use axisymmetric boundary condition in your model? This error often happens when some nodes are below of the axis which would results in negative volume in rotating.
__________________
Regard yours |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Turbogrid and Negative volume | Ali | CFX | 12 | August 18, 2016 15:31 |
FLUENT negative volume | eishinsnsayshin | FLUENT | 1 | March 27, 2012 05:03 |
[blockMesh] error message with modeling a cube with a hold at the center | hsingtzu | OpenFOAM Meshing & Mesh Conversion | 2 | March 14, 2012 10:56 |
remeshing due to negative volume error | Doginal | CFX | 1 | August 21, 2011 22:50 |
fluent add additional zones for the mesh file | SSL | FLUENT | 2 | January 26, 2008 12:55 |