CFD Online Logo CFD Online URL
Home > Forums > Fluent UDF and Scheme Programming

Node Connectivity in Fluent

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

LinkBack Thread Tools Display Modes
Old   February 27, 2012, 21:37
Default Node Connectivity in Fluent
New Member
Join Date: May 2010
Posts: 14
Rep Power: 9
SonyCFD is on a distinguished road
in fluent we can access the node information (position) through node loops in UDF.

Is there any way I can know if one node is connected to another given node?

Thanks and Regards.
SonyCFD is offline   Reply With Quote

Old   March 7, 2012, 18:25
Senior Member
Real Name :)
Join Date: Jan 2010
Location: United States
Posts: 192
Rep Power: 9
ComputerGuy is on a distinguished road
I suppose what you could do is pass a function the pointer of the two nodes in question. Then, the function could loop over every thread, every cell, and every face of the cell to find that node. Once found for node #1, it would be as simple as carrying out the rest of the face loop to determine if they (node #1 and node #2) are co-planar on a face.

Or, are you asking about a direct connection to a specific node? If yes, you could check loop over all faces which contain node #1. Then, loop over all faces which contain node #2 (using method in first paragraph). If there is a non null intersection of those two sets, nodes #1 and #2 are connected.

Certainly there has to be some connectivity tree, given that Fluent is using an unstructured mesh, but I don't recall any Node-->Node connectivity macros.

Wish I could be of more help...But that's a brute force technique. Any other takers?

ComputerGuy 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
Fluent3DMeshToFoam simvun OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 48 May 14, 2012 05:20
few quesions on ANSYS ICEMCFD and FLUENT Prakash.Paudel ANSYS 0 August 12, 2010 12:07
Fluent Parallel Processing Mrxlazuardin FLUENT 2 April 28, 2010 07:36
Fluent 6.3.26 vs 12.1 and partition method Anorky FLUENT 0 April 27, 2010 10:55
solving ocean wave with Fluent or CFX? gholamghar Main CFD Forum 1 March 21, 2009 13:49

All times are GMT -4. The time now is 02:58.