[fade]

Hi; our setup just got updated, and now there is no Gambit. I'm trying to make a relatively simple 2-D mesh, but I'm having a lot of trouble. I imported some coordinate points, and then used the DM 'design from points' command to create the lines. I tried creating surfaces, and then meshing them, but the mesher won't let me set boundary conditions or change materials, and Fluent reads in the mesh with negative volumes. Does anyone have any suggestions for how to make a 2-D mesh?

thanks a lot.

[PSYMN]

On the right hand side of the project page (or by right clicking on geometry to get "properties"), make sure that "Advanced Geometry Options => Analysis type is set to 2D (default is 3D). Also, make sure that you made your model in the XY plane and Z = 0.

[Maldoror]

hi.
I am working with ANSYS 12.0. I made a 2D geometry in the application DesignModeler, but when I load the geometry in the Meshing application, see "? geometry" in the outline tree.
How do I make a 2D geometry?
I do so that the geometry is identified by the Meshing application?
thank you.

[PSYMN]

As I last said, go to the project page (before opening ANSYS Meshing), right click on the geometry field and select properties from the pulldown. On the right side a table of properties will pop up and you can make sure that Analysis type is set to 2D...

Simon

[Maldoror]

Thank you Simon.

[ksguntur]

Hi

I was having the same trouble. I changed the analysis type to 2D but it still does not work. The mesher open and then closes. the error messages in the workbench window says "plugin error: no valid bodies found"

Can any one help please.

Thanks
Krishna.

[ksguntur]

Never Mind. I figured it out. Turns out I was doing it wrong.

[kousis]

to ksguntur:

i get the same thing. what were you doing wrong?

[ksguntur]

I was not actually creating the surface. I sketched it and tried to mesh it. I had to go to concept, create surface from sketch, generate and then try it. Make sure the analysis type is 2D.

[kousis]

Thanks ksguntur!

[dynamicdom]

hey , my situation:

i made a surface in the desing modeler,meshed it as a 2d plate in the ansys 12 mesher .afterwards i wanted to set boundary conditions for in-/outlet of my streaming channel with a gasket in it.

the point is that i can't set boundary conditions for in-/and outlet.

where can i define inlet/outlet(just edges, because of 2d)?

hope anyone can help me...

regards

[kingjewel1]

Originally Posted by dynamicdom

hey , my situation:

i made a surface in the desing modeler,meshed it as a 2d plate in the ansys 12 mesher .afterwards i wanted to set boundary conditions for in-/outlet of my streaming channel with a gasket in it.

the point is that i can't set boundary conditions for in-/and outlet.

where can i define inlet/outlet(just edges, because of 2d)?

hope anyone can help me...

regards

Define your Boundaries in the mesher first. As far as I remember CFX allows you to define them in Pre but fluent doesn't-

[PSYMN]

Named selections are the key to CFD boundary conditions in workbench. This is the same for 2D or 3D, except that you apply them to edges instead of faces.

You can do it in DM or the ANSYS Meshing app.

Use the edge selection tool to select the edge (such as the inlet), then right click and choose the option for creating a named selection... name the selection "INLET" and generate...

Then repeat for other important ones. you don't need named selections for walls.

Simon

[dynamicdom]

thank you two for your help!

[just-right]

Fluid Flow CASE (FLUENT) in the WORKBENCH

I tried the earlier mentioned tips, however I still get the error:

PlugIn Error: No Valid Bodies Found

I imported a sketch as *.CatPart (Catia V5) I generated a surface in DM. I tried it both with and without the imported sketch, both seem to fail. Any tips?

Thanks in advance

[PSYMN]

Are you sure you are setup for 2D? Look up in the thread for info about how to do that...

[just-right]

It seems the 2-D geometry should be placed on the XY plane. You can import an external geometry created on a different plane, just make sure you import it to the BASE plane XY.

Grid creation in v12 isn't what it should have been though.

[SeanQuallen]

Sorry to dig up an old thread, but I'm having this problem as well. I am using a 2D analysis and my surface/line bodies are in the x-y plane. In fact.. they open up in the meshing module and *then* I get the "PlugIn Error..." message. I can then close the message and continue on as if nothing ever happened. I carry on through the solver and I get results with it so I know it works, but I believe this is causing issues during a project wide update/parametric study.

Any ideas? I'm using 13.0 and I have a very simple airfoil/farfield geometrical setup. I drew it up in DesignModeler and created surfaces. This is driving me nuts so any help would be well appreciated!!

[PSYMN]

I am guessing that the error is what is stopping your parametric study...

You probably need to sort that out first...