Fig. 4: Comparison of two biofilms grown under different hydrodynamic conditions: Case 1 and 4.
From: The role of fluid friction in streamer formation and biofilm growth
a Height maps of two biofilm samples after 6 days of growth, with the flow direction oriented from left to right. b Representative biofilm structures along the red lines in (a). Under higher wall shear stress, the biofilm forms more compact structures.
