TY - JOUR T1 - Numerical Simulation of Red Blood Cell Suspensions Behind a Moving Interface in a Capillary JO - Numerical Mathematics: Theory, Methods and Applications VL - 4 SP - 499 EP - 511 PY - 2014 DA - 2014/07 SN - 7 DO - http://doi.org/10.4208/nmtma.2014.1301si UR - https://global-sci.org/intro/article_detail/nmtma/5886.html KW - Red blood cells, moving domain, immersed boundary method. AB -
Computational modeling and simulation are presented on the motion of red blood cells behind a moving interface in a capillary. The methodology is based on an immersed boundary method and the skeleton structure of the red blood cell (RBC) membrane is modeled as a spring network. As by the nature of the problem, the computational domain is moving with either a designated RBC or an interface in an infinitely long two-dimensional channel with an undisturbed flow field in front of the computational domain. The tanking-treading and the inclination angle of a cell in a simple shear flow are briefly discussed for the validation purpose. We then present and discuss the results of the motion of red blood cells behind a moving interface in a capillary, which show that the RBCs with higher velocity than the interface speed form a concentrated slug behind the moving interface.