Comparison of terms neglected in the convective flux equation of the Kuhfuß model as a function of radius. The first panel shows the left hand side of the equation, the second panel shows the shear term, the third panel shows the nuclear energy generation terms and the lower panel shows the pressure fluctuation terms. The results of the sim_k and sim_m simulation are shown with yellow and green lines, respectively. We indicate the entropy and TKE boundaries with dashed and dotted lines in the respective colour.