CFD Online Logo CFD Online URL
Home > Forums > FLUENT

effect of refining mesh

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

LinkBack Thread Tools Display Modes
Old   October 24, 2010, 15:27
Default effect of refining mesh
Senior Member
feizaghaee's Avatar
Join Date: Dec 2009
Posts: 132
Rep Power: 9
feizaghaee is on a distinguished road
Send a message via Yahoo to feizaghaee
hi everyone.
is it possible refining mesh makes the results worse ?
feizaghaee is offline   Reply With Quote

Old   October 24, 2010, 15:45
Senior Member
sail's Avatar
Vieri Abolaffio
Join Date: Jul 2010
Location: Always on the move.
Posts: 308
Rep Power: 10
sail is on a distinguished road
Originally Posted by feizaghaee View Post
hi everyone.
is it possible refining mesh makes the results worse ?
theorically yes, if your cell are so small in comparison with the phisical phenomena you are studing it is possible that the significant figures of the calculation in your cell are too small and therefore you will suffer numerical errors in your solution.

but you need to have a really fine mesh to have this happen. could you describe better what you are studing and the size/quantity of you cells?
sail is offline   Reply With Quote


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
SnappyHexMesh for internal Flow vishwa OpenFOAM Native Meshers: snappyHexMesh and Others 24 June 27, 2016 08:54
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 06:42
engrid -> save as .stl with boundarie codes Zymon enGrid 31 August 29, 2011 13:40
basic of mesh refinement arya CFX 4 June 19, 2007 12:21
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10

All times are GMT -4. The time now is 07:39.