|February 27, 2012, 21:37||
Node Connectivity in Fluent
Join Date: May 2010
Posts: 14Rep Power: 7
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.
|March 7, 2012, 18:25||
Real Name :)
Join Date: Jan 2010
Location: United States
Posts: 180Rep Power: 7
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?
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