Fig. 15

FFR value as a function \({\mathcal {S}}\) for \(\delta D_s=0\) (solid circles), + 300 μm (solid triangles) and − 300 μm (open triangles). The values of the rest of parameters are \(\text{SRI}=\infty,\) \(\omega =\eta =0\) and \(\alpha =7.78.\) The horizontal line indicates the critical value \({\mathcal {S}}=0.8.\) The inlet velocity and pressure in the calculations were those shown in Fig. 14