Fig. 13From: Analyzing the influence of correlation length in permeability on convective systems in heterogeneous aquifers using entropy productionSimulation of convection in a closed box with heterogeneous permeability. Horizontal correlation length \(\text{cl}_\text{h}\) of permeability from left to right: 50 m, 250 m, and 500 m. Permeability is displayed by gray fields, while isotherms are presented as colored linesBack to article page