Numerical simulation of blood with fluid-structure interactions using the lattice-Boltzmann method

TL;DR

This paper presents recent advances in simulating cellular blood flow using direct numerical simulations of deformable red blood cells with the lattice-Boltzmann method, demonstrating RBC deformation, suspension viscosity, and wall layer behavior.

Contribution

It introduces a numerical approach combining the lattice-Boltzmann method with fluid-structure interactions to simulate blood flow with deformable cells.

Findings

RBC deformations observed in simulations

Suspension viscosity varies with shear rate

Cell-depleted wall layer formation in flow

Abstract

The fluid dynamics video presented here outlines recent advances in the simulation of multiphase cellular blood flow through the direct numerical simulations of deformable red blood cells (RBCs) demonstrated through several numerical experiments. Videos show RBC deformations in variety of numerical simulations, relative viscosity of a suspension of RBCs in shear, and the cell-depleted wall layer for blood Hagen--Poiseuille flow.