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Update 3.1 Code basics
authored
Jan 09, 2021
by
Udo Ziegler
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3-NIRVANA-user-guide/3.1-Code-basics.md
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@@ -454,7 +454,8 @@ The criterion is applied to primary (or related) physical variables
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@@ -454,7 +454,8 @@ The criterion is applied to primary (or related) physical variables
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Jeans-length-based (important in simulations involving selfgravity)
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Jeans-length-based (important in simulations involving selfgravity)





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
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@@ -462,7 +463,7 @@ The criterion is applied to primary (or related) physical variables
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@@ -462,7 +463,7 @@ The criterion is applied to primary (or related) physical variables
ℰ
<sub>
*J**e**a**n**s*
</sub>
is a user-specific threshold with the
ℰ
<sub>
*J**e**a**n**s*
</sub>
is a user-specific threshold with the
reciprocal value giving the minimum number of grid cells the local
reciprocal value giving the minimum number of grid cells the local
Jeans length should be resolved.
Jeans length should be resolved.
-
Field-length-based (potentially relevant for simulations involving a
-
Field-length-based (potentially relevant for simulations involving a
heatloss source but rarely used in practice):
heatloss source but rarely used in practice):


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