Changes
Page history
Update 3.1 Code basics
authored
Jan 08, 2021
by
Udo Ziegler
Hide whitespace changes
Inline
Side-by-side
3-NIRVANA-user-guide/3.1-Code-basics.md
View page @
af42f8ea
...
...
@@ -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>
(
*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>
where
(
*δ*
*x*
<sup>
(0)
</sup>
,
*δ*
*y*
<sup>
(0)
</sup>
,
*δ*
*z*
<sup>
(0)
</sup>
)
(
*δ**x*
<sup>
(0)
</sup>
,
*δ**y*
<sup>
(0)
</sup>
,
*δ**z*
<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.
...
...
...
...
