How to draw U-Pipe in 3D
 

Hi I need to draw a U pipe as 3D mesh in gambit and I donnot know how ? may somebody help me with it please?
Mariam

*create your U as edges
*create your pipe section (surface)
*place one extremity of your edges-chain at center from your surface
*create the volumes by sweeping your surface with edges (Volume/sweep surface)

Thanky you max for your valuable reply. I am beginner with Gambit may you send me a JOU file for the steps you mentioned this will be more helpful to me.

Mariam

vertex create coordinates 0 0 0
vertex create coordinates 100 0 0
vertex create coordinates 100 100 0
vertex create coordinates 0 100 0
edge create straight "vertex.1" "vertex.2"
edge create straight "vertex.2" "vertex.3"
edge create straight "vertex.3" "vertex.4"
edge create fillet "edge.1" "edge.2" parameters 0.79069168 0.17737705 radius \
30 notrim
edge create fillet "edge.2" "edge.3" parameters 0.85621269 0.11274796 radius \
30 notrim
edge split "edge.3" vertex "vertex.8" connected
edge split "edge.2" vertex "vertex.7" connected
edge split "edge.2" vertex "vertex.6" connected
edge split "edge.1" vertex "vertex.5" connected
edge delete "edge.3" "edge.7" "edge.2" "edge.9" lowertopology
edge merge "edge.1" "edge.4" "edge.8" "edge.5" "edge.6" forced
face create radius 20 yzplane circle
volume create rotate "face.1" onedge "v_edge.9" draft 0 rounded
window modify shade
window modify noshade
edge delete "v_edge.9" lowertopology

max thanks for your effort. I failed to sweep the faces into volume, I chose face 1 & 3 and select path as edge I chose edge 12 then after i press apply this error appear to me:

ERRor: The chain to be swept is parallel to the path

what i can do then? is my selecting of faces wrong?

Mariam

did you run the journal file?
it should create your pipe automatically

Yes I do but it not complete only there are two circles connected with line like U check it pls? see image

Maraim

enable shaded mode on (icon with grey block)

hi again max I failed to find the shaded mode that you mentioned? may you send me illustrated picture for it ? Should I do this step before running the journal file to get the volume?

Mariam

this is just a display option (like light on/off)
Attachment 6282

Is it available with the sweap option or you mean with it the neighbor block? if the second there are several options to draw the volume like that appear on the image (see it pls) which one should i select to draw the volume? sorry to bother u

your volume is already built
just click on the icon I mentionned

Attachment 6285

Sorry max i found it at last thanks a lot. Now can i mesh this volume easily?

As you saw there is only one generatrice (line linking the 2 disks)
It will crash the mesh.
So you can create a second generatrice.
> edge split "edge.13" percentarclength 0.5 connected
> edge split "edge.10" percentarclength 0.5 connected
it will split the circle into 2 semi-circles, with a vertex in the middle
Then split the surface with the 2 vertex.
>face split "face.2" vertices "vertex.13" "vertex.14"
Then you can go and mesh your volume (spacing 5), gambit will automatically select cooper scheme

max may you sent me the first journal file with adding the last steps. An error happened while i split face 2 with vertices 13 and 14?

Thanks again
Mariam

What kind of error?

Thank you max i succeded with drawing the mesh.

edge create fillet "edge.1" "edge.2" parameters 0.79069168 0.17737705 radius \
30 notrim

0.79069168 for edge 1 and 0.17737705 for edge to or inverse ?