In-Flow dynamics of an area-difference-energy spring-particle red blood cell model on non-uniform grids

Brendan Walsh, Fergal J. Boyle

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper the area-difference-energy spring-particle (ADE-SP) red blood cell (RBC) structural model developed by Chen and Boyle is coupled with a lattice Boltzmann flux solver to simulate RBC dynamics. The novel ADE-SP model accounts for bending resistance due to the membrane area difference of RBCs while the lattice Boltzmann flux solver offers reduced computational runtimes through GPU parallelisation and enabling the employment of non-uniform meshes. This coupled model is used to simulate RBC dynamics and predictions are compared with existing experimental measurements. The simulations successfully predict tumbling, tank-treading, swinging and intermittent behaviour of an RBC in shear flow, and demonstrate the capability of the model in capturing in-flow RBC behaviours.

Original languageEnglish
Pages (from-to)52-64
Number of pages13
JournalComputer Methods in Biomechanics and Biomedical Engineering
Volume25
Issue number1
DOIs
Publication statusPublished - 2022

Keywords

  • GPU
  • Lattice Boltzmann Flux Solver
  • Red Blood Cell Dynamics
  • Tank Treading
  • spring-particle

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