CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM

Computing divergence for axisymmetric cases

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 24, 2017, 15:59
Default Computing divergence for axisymmetric cases
  #1
New Member
 
Abd Essamade Saufi
Join Date: Apr 2017
Posts: 15
Rep Power: 9
SaufiSangi is on a distinguished road
Hello everybody,
I am working on an axisymmetric mesh, built from a 2D mesh and then made axisymmetric by "makeAxialMesh".
For my CFD code I need the calculation of the divergence of a volVectorField (in particular I need to calculate a curvature, therefore a divergence of normal vectors to an interface). This seems to be well calculated everywhere, but not for the cells on the symmetry axis ( the "empty" one). It just gives me a clearly wrong result for these cells.
The only thing that comes to my mind is the different shape of the cells: on the axis they are prisms, while all over the domain are hexahedrals. Can this be a problem?

Thanks guys,

Sangi
SaufiSangi is offline   Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
UDF divergence of a vector cris FLUENT 3 September 4, 2014 18:06
Divergence problem for species transport model MY FLUENT 3 January 11, 2014 04:46
How to speed up the simulation of a large amount of similar steady state cases tss Main CFD Forum 4 November 5, 2010 14:36
CFD Validation Cases doug Main CFD Forum 4 January 11, 2010 19:28
Directory constructions of complex cases 7islands OpenFOAM 2 August 26, 2008 05:25


All times are GMT -4. The time now is 22:15.