Modelling of flowing cells for large scale simulations
vendredi 26 octobre 2018, 11h00 - 12h00
The presence of flowing cells with complex structures strongly affects the behaviour of blood at both local and large scales, in particular in complex and confined geometries.
This talk will focus on the modelling of such deformable flowing objects and geometries, and especially on ways to efficiently account for the multiple fluid-structure coupling problems arising from the presence of elastic vessel walls and cell membranes.
We will in particular briefly present the biological context and introduce some appropriate numerical methods for the simulation of such systems, such as the Arbitrary Lagrangian-Eulerian and the level-set methods. We will then focus on the modelling of the red blood cells in an Eulerian approach, and present some recent developments on the use of diffusion-redistantiation schemes to accurately account for bending effects in the cell membranes.