Characteristics of typical solar loops compared with simulation parameters: χ_L versus χ₀. The turnover time is fixed to  s and we assume a two-temperature hydrostatic loop model (see appendix). The black solid and dashed lines are for the two coronal temperatures of 3 MK and 0.8 MK, respectively. The circles are for the three-layer runs A − L (see Table 1). The diagonal dotted lines are the curve χ_L = (1/ϵ)χ₀ for three values of ϵ.