Formation and destruction of the erythrocytes clots in the vessel with local expansion

A mathematical model of aggregation and destruction of erythrocytes clots in the shear flow is constructed. Calculations show the influence of shear stress realized in a blood shear flow on the average size of clots. It is also shown that the bosoms of aneurysms create conditions for formation of the large agglomerates, which can result to the thrombosis of a considered part of blood vessel.