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Update 3.1 Code basics
authored
Jan 08, 2021
by
Udo Ziegler
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@@ -406,9 +406,9 @@ The mesh refinement algorithm relies on the oct-tree data structure
grid blocks with a generic grid block having a fixed number of 4 grid
cells per coordinate direction independent of the refinement level. A
generic grid block of refinement level
*l*
has grid spacings
(
*δ
**
x*
<sup>
(
*l*
)
</sup>
,
*δ
**
y*
<sup>
(
*l*
)
</sup>
,
*δ
**
z*
<sup>
(
*l*
)
</sup>
) = (
*δ
**
x*
<sup>
(0)
</sup>
,
*δ
**
y*
<sup>
(0)
</sup>
,
*δ
**
z*
<sup>
(0)
</sup>
)/2
<sup>
*l*
</sup>
(
*δx*
<sup>
(
*l*
)
</sup>
,
*δy*
<sup>
(
*l*
)
</sup>
,
*δz*
<sup>
(
*l*
)
</sup>
) = (
*δx*
<sup>
(0)
</sup>
,
*δy*
<sup>
(0)
</sup>
,
*δz*
<sup>
(0)
</sup>
)/2
<sup>
*l*
</sup>
where
(
*δ
**
x*
<sup>
(0)
</sup>
,
*δ
**
y*
<sup>
(0)
</sup>
,
*δ
**
z*
<sup>
(0)
</sup>
)
(
*δx*
<sup>
(0)
</sup>
,
*δy*
<sup>
(0)
</sup>
,
*δz*
<sup>
(0)
</sup>
)
is the grid spacing of the base level, i.e., there is a doubling of
resolution from one refinement level to the next higher.
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