Figure 7.

Increase of overall mass transport for faster flows, and for the oscillating streamers with different elasticities. (a) Effect of fluid velocity, represented by Re, on mass transfer, represented by time-averaged overall Sherwood number, ${\overline{Sh}}_t$; (b) mass transfer enhancement of oscillating biofilm streamers with different flexibilities relative to the static structure. The more flexible structure with Young's modulus of E_B = 1000 Pa permits more substrate transfer than the stiffer one with E_B = 4000 Pa.