Changes
Page history
Update 3.1 Code basics
authored
Jan 08, 2021
by
Udo Ziegler
Show whitespace changes
Inline
Side-by-side
3-NIRVANA-user-guide/3.1-Code-basics.md
View page @
edcffa4b
...
@@ -454,11 +454,7 @@ criteria which are
...
@@ -454,11 +454,7 @@ criteria which are
flow features right in time.*
flow features right in time.*
-
Jeans-length-based (important in simulations involving selfgravity):
-
Jeans-length-based (important in simulations involving selfgravity):
$$
\\
left(
\\
frac{
\\
pi}{G}
\\
frac{c
\_
s^2}{
\\
varrho}
\\
right)^{1/2}
\\
cdot
\\
mathcal{E}
\_\\
mathrm{Jeans}
\\
left
\\
{
\\
begin{array}{ll}
<
\\
delta
\\
,
\\
!s &
\\
mbox{refinement}
\\\\
>
1.25
\\
delta
\\
,
\\
!s &
\\
mbox{derefinement}
\\\\
\\
end{array}
\\
right.$$
where the first factor is the local Jeans length with
where the first factor is the local Jeans length with
*c*
<sub>
*s*
</sub>
the sound speed and
*G*
the gravitational
*c*
<sub>
*s*
</sub>
the sound speed and
*G*
the gravitational
constant, and where
constant, and where
...
...
...
...
