[Jay ZHOU]

Hello everyone, first of all, please forgive me for my poor English. I am a new OpenFOAMer, I want to add 8 refinement boxes in snappyHexMeshDict, but it looks like the system doesn't recognize each refinement after I name it, here's my refinement box part of snappyHexMeshDict (An error was encountered during the upload, so the entire file could not be uploaded together, sorry):
refinementBox
{
type box;
name box1;
min (3.9 0 0);
max (16.4 1 1.5);
type box;
name box2;
min (16.4 0.4 0);
max (19.7 0.72 1.5);

}
I've tried unnamed and the resulting grid only encrypts the last box(box2)， But when I name each box in the above way, the grid is not encrypted, why is that?
I hope someone can help me, please.

[AtoHM]

You cannot add two "box" objects inside one geometrical entity, instead, create two entities:

box1
{
    type box;
    min  (3.9   0   0);
    max  (16.4 1  1.5);
}
box2
{
     type box;
     min (16.4 0.4 0);
     max (19.7 0.72 1.5);
}

I' wondering abit about the "type box;" entry. This does work? I think it should be "type searchableBox;" but well, if it works ...

[Yann]

Originally Posted by AtoHM

I' wondering abit about the "type box;" entry. This does work? I think it should be "type searchableBox;" but well, if it works ...

The shorter syntax has been introduced in OpenFOAM-v1812:

The searchable surfaces, which are often used in snappyHexDict are available with shorter names as an alternative to the longer names.

New: box, cylinder, sphere …
Longer: searchableBox, searchableCylinder, searchableSphere …

source: https://www.openfoam.com/news/main-n...pre-processing

[Jay ZHOU]

Thanks to AtoHM and Yann.