Figure 10.

Model of prescission conditions for fibrils undergoing sonication. The picture is that fibrils of length L align radially in the vicinity of an imploding bubble of radius R thanks to the radial fluid flow. The radial coordinate from the center of the bubble is s and the fibril has an edge closest to the bubble of $s_0$. The position $s^{\ast }$ denotes the radial distance at which the fixed fibril velocity matches the fluid velocity, so that the net viscous stress vanishes there. To see this figure in color, go online.