Low convection significantly enhances colonization. In the current simulation, we decreased the convection rate m by 50% and left all other parameters at their baseline values. Notice that the bacteria colonize closer to the initial inoculation as compared to the baseline case. Also, notice the larger bacterial concentration in the epithelium as compared to the baseline case over the same time points: 1 s, 2 s, 5 s, 10 s, 12 s, 15 s. The low convection allows bacterial motility to dominate so that the bacteria can colonize the epithelium sooner.