Non Sweepable bodies
3 Attachment(s)
Hi everyone.
I am working on a geometry where I have a cube and inside of which there is a sphere (Cut material, i.e the sphere is hollow). Now the problem stands that i can't create the sweepable bodies (at least in the part where the cube has the sphere in it, but I can create the sweepable area outside the sphere). I need to create sewwpable bodies for the antire cube (minus the hollow sphere). any suggestion??? Attachment 16523 Attachment 16524 Attachment 16525 
The bodies you create are not sweepable because of the sphere you put in the center. I assume you have DesignModeler, so if you want to get a mesh like in the images below you need to split the geometry to help the mesher.
This is meshed with the Multizone method and will result in the same kind of mesh that you get in ICEM hexa. I have also attached the project file where the mesh is created. Hope it helps. https://www.dropbox.com/s/7oo40wpif7...be_sphere.wbpz http://i.imgur.com/LUuzN.png http://i.imgur.com/j541k.png 
Thanks a lot man.. you are a real jem. It was the thing I have been trying for days now and thanks to you I finally have the solution. :)
Really appreciate it. Thanks again 
While working on your project file...I couldn't view the mesh like you showed in your second picture. What could be the possible reason??
thanks in advance 
Select one of the bodies, right click and choose "hide body"

1 Attachment(s)
Thanks that worked out. But This is the new issue I am getting. Tetrahedron mesh in the inner sphere. DO you know the possible cause?? I want it hexahedron like you did.
The pic. is attached here Attachment 16550 
Did you get that with my file?

No yours file was just fine. I just followed your steps and made one by my own. I must have done some mistake. I'll go through it once more. But Thanks for the help. :)

Do youactually have a sphere body in there btw? If that's the case, just delete it

Okay. you mean to say i have to add the sphere like you did BUT slice material right??

Just saying that if you want to model flow around the sphere, you only need the wall, not the actual sphere. So yeah, slice the cube with the sphere but then delete or supress the sphere body when meshing. Not sure if that's your problem, but from your image it looks like you have a nice mesh around the sphere and then the sphere itself is meshed seperately with tet mesh. But maybe the image is fooling me

2 Attachment(s)
Alright...Let em explain my problem that I am trying to solve. I need a solid CUBE with a Hole (SPHERE). There will be an inlet (any face of cube) and outlet (opposite face of the cube) and in between there will be this sphere (as a hole). I was told to get very very fine mesh indeed (like you created the inflated layer) near the sphere wall (all Hex, none Tet)for studying the velocity profile.
I'm attaching few pictures clear the confusion. Can you help Please??:( Attachment 16562 Attachment 16563 
Your suggestion worked. I just deleted the internal sphere and its sweepable now. Thanks a lott :)

Either use my files and just alter the dimensions in designmodeler (you would need a bigger cube if that is supposed to be your entire fluid domain, since the sphere is relatively big. Will help get accurate reults in the simulation), or select all bodies except the 6 bodies surrounding the sphere, and surpress them.
Then you are left with a multibody part consisting of only these 6 bodies. The inner boundaries of these bodies will then represent the sphere. EDIT: Ok good, no problem :) 
Quote:

HI.
The previous problem solver absoultely perfectly, in which you helped a lot. But I am trying this new problem where everything is same, even the boundary conditions. But the difference lies in the fact that the spherical hole has been replaced with triangular hole ( of certain width ) and it has flaps on either side of the triangle as well. The triangle is situated at the centre of the solid cube and I need to model flow around the triangle. I tried your method of multi zone meshing but dur to unsymmetric geometry (i.e the triangle, unlike sphere), I am not able to to do fine mesh (hehxa hedral elements), like you did in the previous problem (images available above). So I want to know if there is a way to get hexahedral mesh by any other way for unsymmetrical bodies like this one?? thanks in advance :) 
Seems like quite a big change from the previous geometry (sphere). Can you share an image of the geometry?


1 Attachment(s)
Hi there!
I am sending a JPEG format picture for the clear view of the geometry. Hope it helps :) Thanks in advance 
All times are GMT 4. The time now is 02:45. 