The influence of hematocrit on the decaying shear turbulence of blood flow in large arteries

Abstract eng:
A novel experimental approach, consisting of scaled hydrogel beads representing red blood cells, is used to model pulsatile turbulent flow in large arteries. The large optical facility uses a boundary-free, uniformly-sheared flow that decays in time, in which the velocity fields are acquired via particle image velocimetry on streamwise/cross-stream and streamwise/spanwise planes for Newtonian and non-Newtonian single-phase blood analogues, as well as for the two-phase case representing varying levels of hematocrit. Changes in the decay rate are observed when moving from the Newtonian to non-Newtonian and finally two-phase (varying hematocrit) blood analogues.

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