Figure 2.

Biofilm consecutive response over time at u = 0.020 m s⁻¹, leading to detachment and streamer formation. Triangles for less viscous biofilm (η = 10³ kg m⁻¹ s⁻¹) and squares for more viscous biofilm (η = 10⁵ kg m⁻¹ s⁻¹), closed symbols follow the images sequence. (Online version in colour.)