Figure 10

Variation of stenosis distance. In columns (a), (b) and (c) we compare a series of two dynamic stenoses, which are separated by one, two and three stenosis dimensions respectively. From the top we illustrate the flow velocity, the pressure, the friction coefficient, the wall shear stress, the momentum correction coefficient and normalised boundary layer thickness, the shape factor and the instantaneous geometry of the vessel. The boundary layer is illustrated as dashed lines. The upward triangles at the centreline of the vessel geometries indicate the separation point, while the downward triangles indicate the reattachment of the boundary layer. The FFR decreases with increasing distance between the stenoses.