error in AMR grid hierarchy

[bw jin]

Dear all,

I am now simulating the motion of oscillating elastic ellipsoid. I got the error after some time steps like this:

Anyone knows how to solve it?

Thanks.

Best,

Bowen

[Boyce Griffith]

> On Nov 2, 2023, at 3:58 AM, bw jin <bwj...@gmail.com> wrote:
>
> Dear all,
> I am now simulating the motion of oscillating elastic ellipsoid. I got the error after some time steps like this:
>

> <fig2.PNG><fig1.PNG>

> Anyone knows how to solve it?

You probably have encountered overlapping AMR grid patches. You could try setting some or all of the following flags in the GriddingAlgorithm section of the input file:

GriddingAlgorithm {
// ...
allow_patches_smaller_than_ghostwidth = TRUE
allow_patches_smaller_than_minimum_size_to_prevent_overlaps = TRUE
coalesce_boxes = TRUE
extend_tags_to_bdry = TRUE
}

You also could try changing the smallest patch size (try making it smaller) or the efficiencies (probably also could be smaller) in the GriddingAlgorithm settings.

> Thanks.
> Best,
> Bowen
>
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> <fig1.PNG><fig2.PNG>