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(a–c) Numerical results for a flexible filament in a viscous 2D flow around a corner. Steady-state positions for different lengths of the filament are shown. The values of elasticity, thickness of the filament, and Reynolds number used in the numerical model were 100 Pa, 1 μm, and 0.001, respectively. (d) Experimental biofilm streamer after 18 h of continuous flow at 0.5 μl min−1.
