Figure 2.

A, Phase I: prescribed peak velocity ${\tilde{v}}_z$ for parabolic profile with ${\tilde{v}}_z{|}_{y>0}=630$ mm/s and ${\tilde{v}}_z{|}_{y<0}=615$ mm/s for $t⩾0.5$ s (Equation (1)) and ${\tilde{v}}_x={\tilde{v}}_y=0\forall t\in [0,T]$. B, Phase II: recorded peak velocity ${\tilde{v}}_i$ (i∈{x,y,z}) for parabolic inflow and data fit. We note, that ${\tilde{v}}_y{|}_{y<0}=0$ 37