COMPARATIVE ANALYSIS OF TWO MULTIPHASE MODELLING APPROACHES FOR BLOOD FLOW
Printer-friendly versionPDF version

<p>The Euler-Euler methodology implemented in STARCCM+ is used for modelling blood flow in narrow tubes. Two particulate flow modelling approaches, one: kinetic theory based granular flow (KTGF), and second: two-fluid theory based suspension rheology, are used to understand the phenomenon behind the migration of red blood cells (RBCs) from the walls to the core in narrow flow channels. It is demonstrated that the stress induced diffusion is responsible for the motion of the RBCs towards the center, and this particle migration phenomenon explains the Fåhræus-Lindqvist effect. The computed haematocrit distribution from the numerical simulations performed agrees with experimental measurements, and both KTGF model and suspension model are able to predict the flow characteristics analogously. But, it is highlighted that by accounting for the inelasticity of the walls, KTGF approach significantly influences and improves the near wall prediction of the haematocrit concentrations. Keywords : Blood Flow, Two Fluid Model, Kinetic Theory of Granular Flows, Suspensions, Stress induced diffusion.</p>

Author Name: 
Mohit P. TANDON
Jebin ELIAS
Simon LO
Author Company: 
CD-adapco
Products: 
Conference Location: 
Melbourne, Australia
Conference Proceeding PDF: 
Conference Date: 
Monday, December 7, 2015
Conference Name: 
Eleventh International Conference on CFD in the Minerals and Process Industries