[jessicabp]

Hello. I have been trying to create a simulation of semi-submersible platform but as it has 62 blocks, I decided to start trying to simulate just the bottom part first, which has 24 blocks. The problem is that when I use the command blockMesh, my mesh starts being generated and right after the 24 blocks get created it shoes a message saying "killed" and it stops. I thought it was a problem with my computer, so I tried to run it in other two computers, the same problem occurred. Anyone knows what the problem can be?


Thanks.

[t.oliveira]

Insufficient memory may be the reason why blockMesh is being killed, as explained on this post.

I needed to generate a mesh for a rectangular cuboidal domain divided into smaller identical rectangular cuboids. For this specific type of mesh, I have written a C++ program that creates the same files that would be created by blockMesh.
It is available here in case it can be useful to other people.

Using this code, I was able to generate a 500x500x500 mesh that I couldn't generate using blockMesh on my computer with 64 GB RAM. It takes 70% more time than the OpenFOAM's blockMesh, but requires 40% less memory.

[EDIT: a new version is available on the same link. Now it takes 24% more time than the OpenFOAM's blockMesh, but requires at most 80 MB, independently of the mesh size.]

Best wishes,
Thomas

[KMM080]

Dear Thomas, How I can get the file, it seems the link does not work for me, Thanks in advance

[t.oliveira]

Dear Kawa,

I am sorry for the broken link. I had renamed the file. It is called boxMesh.C and can be found here.

Best wishes,
Thomas