On the estimation of blood hemolysis index from viscoelastic stretch model

Abstract: This contribution presents an alternative way of estimating the blood damage hemolysis index using the viscoelastic stretch tensor. This tensor is obtained by solving a set of coupled partial differential equations describing the rheology of shear-thinning viscoelastic fluid. The main advantage of the chosen approach is that the already calculated and known stretch tensor is just reused and postprocessed to assess the local deformation of red blood cells, that can in certain cases lead to degradation of the cell membranes and consequent release of hemoglobin. The algorithm of solving the viscoelastic stretch tensor equations and hemolysis index postprocessing will be outlined and discussed in detail. Some initial numerical simulations for an axisymmetric idealized stenosed blood vessel, obtained using an in-house finite-volume solver, will be presented.

MathematicsPhysics

Audience: researchers in the topic

Nečas Seminar on Continuum Mechanics

Series comments: This seminar was founded on December 14, 1966.

Faculty of Mathematics and Physics, Charles University, Sokolovská 83, Prague 8. If not written otherwise, we will meet on Mondays at 15:40 in lecture hall K3 (2nd floor)