FIG. 6.

Representation of the estimated applied stress $St$ at the exit of the last geometrical constriction vs the flow velocity $V_{Fluid}$ at this location and the external medium viscosity ${\eta }_{out}$ showing the two behaviors regions (unfolding/stretching) as well as the threshold stress $S{t}_{thresh}$. The inset shows a close-up on the origin of the plot. The gray zone represents the transition zone. Numerical simulations were performed using $W_o=15$ $\mu$m.