Simulation of erythrocyte deformation in a high shear flow.
Deformation of a red blood cell (RBC) in a high-shear flow was investigated. The RBC was modeled as a closed shell membrane consisting of spring networks in the framework of the energy minimum concept. The simulation of RBC in a parallel shear flow showed deformation parameters of RBC were well agreed with experimental results. The simulation of RBC behavior in various flow fields demonstrated that the shape was determined not only by instantaneous fluid force acting on it but also its deformation history. No consistency was found between the maximum of the first principal strain and conventionally used hemolysis index. Those results addressed the importance of considering an RBC deformation for accurately predicting hemolysis.
Nakamura
Masanori
M
Center for Advanced Medical Engineering and Informatics, Osaka University, Toyonaka, Osaka 560-8531, Japan. masanori@me.es.osaka-u.ac.jp
Bessho
Sadao
S
Wada
Shigeo
S
D000465:Algorithms; D001698:Biomedical Engineering / Q000379:methods; D003198:Computer Simulation; D004907:Erythrocyte Deformability; D004910:Erythrocyte Membrane / Q000473:pathology; D004912:Erythrocytes / Q000166:cytology*; D006439:Hemodynamics; D006461:Hemolysis; D006801:Humans; D008955:Models, Cardiovascular; D015233:Models, Statistical; D008962:Models, Theoretical; D033081:Shear Strength; D013314:Stress, Mechanical