3-NIRVANA-user-guide/3.1-Code-basics.md

@@ -465,6 +465,7 @@ The criterion is applied to primary (or related) physical variables
 -   Field-length-based (potentially relevant for simulations involving a
     heatloss source but rarely used in practice):
 ![amr_Field](uploads/89e2c04627cd657ccf5577610138fdc9/amr_Field.png)
+![amr_Field](uploads/db075bc2fcf2d08aef12da4e3d3be312/amr_Field.png)
     where the first factor is the Field length with *L*(𝜚, *T*) the
     density- and temperature-dependent heatloss function and *κ* the
     thermal conduction coefficient. ℰ<sub>*F**i**e**l**d*</sub> is a