凝集赤血球サスペンションのFAHRAEUS効果

抄録

The Fahraeus effect of aggregating red cell suspensions flowing through narrow tubes is theoretically considered using a mathematical model. This model was developed in our previous paper to analyze the flow properties of aggregating red cell suspensions in narrow vertical tubes. The ratio of tube hematocrit H_T to discharge hematocrit H_D is calculated as a function of pseudo-shear rate u, which is defined as a mean velocity divided by a tube diameter. At low shear rates, it is shown that the ratio H_T/H_D increases with increasing u and increases with increasing tube diameter. These theoretical predictions are in good qualitative agreeement with experimental results.