Vectorial Helmholtz - Bent waveguide

General discussion about Elmer
kevinarden
Posts: 1210
Joined: 25 Jan 2019, 01:28
Antispam: Yes

Re: Vectorial Helmholtz - Bent waveguide

Post by kevinarden »

Did the same, then put the post file = case.vtu back in, and received the tutorial answer. I compared the 'downloaded' tutorial file mesh to the generated mesh by following the tutorial. The down loaded mesh is more refined than the tutorial generated mesh. So the reason for the tutorial result no matching is the mesh generation step in the beginning produces a courser mesh than the one used in the answer.

You can play around with Max H and the answer varies significantly with mesh size. You have to get a mesh size same as the 'downloaded' mesh to get the tutorial value.

Mesh
Configure..
Max H: 0.012
Apply
Mesh
Remesh
Last edited by kevinarden on 27 Apr 2021, 23:11, edited 1 time in total.
kpereir
Posts: 5
Joined: 25 Mar 2021, 00:03
Antispam: Yes

Re: Vectorial Helmholtz - Bent waveguide

Post by kpereir »

Thanks everyone! That makes totally sense, I have played a bit with the mesh size and now I can get pretty close to the values on the tutorial. :)
Yeah! I knew it was something silly!!!

Thank you all again!!!
Post Reply