Meshing cylinder with hemisphere top

Coreform Cubit Meshing
#1

Hi,

I am trying to mesh a cylinder topped with a hemisphere. I have used a cicular mesh on the cylinder face and swept through to get a nice uniform mesh for the cylindrical volume. Now I am trying to mesh the hemisphere on the top, but I have not managed to do so.

I wonder if there is a built-in way to webcut it to achieve the desired mesh? or maybe a scheme to achieve the mesh I want?

I am attaching some images of the geometry I want to mesh, also the same geometry with the type of mesh I want that I created in ANSA using a built-in “o-grid” function.

cubit_ansa
cubit_ansa1910×578 106 KB

Ansa_mesh
Ansa_mesh1736×542 242 KB

Thanks!
/Anton

#2

Hi @anton,

you can mesh it by decomposing the half sphere with 2 webcuts and assigning the polyhedron scheme afterwards.

Here is a short example

#!cubit
reset
create sphere radius 1 zpositive 
create Cylinder height 5 radius 1 
move volume 2 z -2.5
webcut volume 1 with plane xplane offset 0 
webcut volume 1 3  with plane yplane offset 0 

imprint vol all
merge vol all

vol all size auto factor 4

volume 4 3 5 1 scheme polyhedron
mesh vol 4 3 5 1
mesh vol all

grafik
grafik713×456 18 KB

grafik

#3

Hi @Norbert_Hofbauer!

Thanks a lot this was exactly what I wanted!