# [GAMBIT] GAMBIT edge problem

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 February 24, 2014, 17:39 GAMBIT edge problem #1 New Member   Sajjad Join Date: Feb 2014 Posts: 5 Rep Power: 3 Hi all I am new to GAMBIT and FLUENT I created vertices by using this journal code: \$i = 0 \$imax = 5 \$inc = 0.0001 do para "\$i" init 0 cond (\$i .le. \$imax) incr \$inc vertex create coordinate \$i (SQRT(\$i)) 0 enddo this code creates vertices of the y=sqrt(x) function (create 15974 vertices!!!) So, now I want to create an edge by fitting a smooth curve between all of these vertices( the most appropriate edge form these vertices). What is the most appropriate edge type for the best accuracy?? I tried to create edge with NURBS edge, first I selected all vertices and then I clicked on Apply, but when I zoom on the edge it seems that edge didn't pass between all vertices (the edge has a little distance from the vertices except the first one and the last)!!!! Why?? NURBS edge is useful for this case, isn't it?? what is my fault?

 February 25, 2014, 02:28 #2 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,972 Rep Power: 30 I never used this funtionnality, but the help is mentioning 2 options: interpolate & approximate Did you try both options? https://www.sharcnet.ca/Software/Gam...e_create_nurbs __________________ In memory of my friend Hervé: CFD engineer & freerider

February 25, 2014, 04:31
#3
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Quote:
 Originally Posted by -mAx- I never used this funtionnality, but the help is mentioning 2 options: interpolate & approximate Did you try both options? https://www.sharcnet.ca/Software/Gam...e_create_nurbs
yes I tried the both method (interpolate & approximate) but the result was same!
but according to the help file interpolate should work!!!
Attached Images
 NURBS edge .jpg (46.4 KB, 4 views)

 February 26, 2014, 01:45 #4 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,972 Rep Power: 30 Mesh your edge. And re-check __________________ In memory of my friend Hervé: CFD engineer & freerider

February 26, 2014, 16:56
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Quote:
 Originally Posted by -mAx- Mesh your edge. And re-check
You were right!
when I meshed the edge, the mesh boundary exactly passed from the vertices!
Thanks

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