Why can't I select geometry during meshing for cfd in fluent?

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  • Last Post 24 December 2018
Zaber5 posted this 23 December 2018

I created a simple wing geometry in solidworks by extruding an imported curve and created an enclosure in designmodeler for my fluid domain. When meshing I can put body sizing as usual on the domain but I cant select the geometry inside the domain. I tried suppressing the flow domain, it doesn't let me select the wing geometry and I end up with a ? for that bodymeshing. What am I doing wrong?

 

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raul.raghav posted this 23 December 2018

If you extruded a curve to make the wing geometry, wouldn't it be a surface body that you obtain. Can you select the wing surface or is that not getting selected as well?

Rahul

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Zaber5 posted this 23 December 2018

The wing is a surface. So apparently the issue arises when I select the wing as the body of influence for the flow domain. If instead I use a sphere of influence the problem doesn't persist.

raul.raghav posted this 23 December 2018

That makes sense. Body of influence requires two bodies (like a target body and a source body), which you don't have in your case. Sphere of influence can be useful by creating a new coordinate system acting as the center of a sphere and you define a sphere radius, within which you can locally refine the mesh.

Rahul

Zaber5 posted this 23 December 2018

Any idea why this face doesn't get selected for the boundary?

raul.raghav posted this 23 December 2018

The face looks like its been selected. Check the following tutorial for reference:

ANSYS MESHING - Inflation

Rahul

kkanade posted this 24 December 2018

if that face is not the part of the body you selected under 'geometry' then that face will not be selected under 'boundary'. 

please make sure that you have extracted the fluid region correctly. 

please do sharetopology operation in DM. 

if this helps you, please mark this post as 'is solution' to help others on forum.

 

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