Fig. 2
From: Modulation of biofilm growth by shear and fluctuations in turbulent environments
Oscillating grid turbulence generator. The top sketch illustrates the cylindrical container along with the positions of the two sensors; the shaded regions indicate the grid excursion. The bottom plots present experimental measurements from Acoustic Doppler Velocimetry, highlighting the turbulence characteristics within the oscillating grid apparatus (data adapted from Guadayol et al.58). (a) Velocity spectra for Sensor 2; (b) Instantaneous velocity components measured by Sensor 2; (c) Velocity spectra for Sensor 5; (d) Instantaneous velocity components measured by Sensor 5.
