How to achieve this mesh refinement?

[IleanaMonsalvo]

Hello!
I am trying to achieve the mesh refinement shown here:

But starting from this mesh:

I tried with “refine volume 1 using plane zplane depth 10” but this does not produce the desired result. The refinement propagates diagonally through the transition region instead of creating the complete vertical divisions that I would like.

Is there a recommended way in Coreform Cubit to create this type of controlled refinement in an existing all-hex mesh? For example, would this be possible using hex sheet refinement/insertion, or would the transition need to be constructed differently during the original meshing process?

Any suggestions on the appropriate Cubit commands or meshing strategy would be greatly appreciated.

Thank you!

[Norbert_Hofbauer]

Hi @IleanaMonsalvo,

have you already tried to refine with the surface?

#!cubit
reset
create brick x 1
mesh vol 1
refine surface 5 numsplit 1 bias 1.0 depth 5 smooth
refine surface 5 numsplit 1 bias 1.0 depth 5 smooth

There are a few ways to select the hexes you want to refine.

Can you share your geometry or journal so that i can take a look at it?