Analysis of blood flow in deformable vessels via a lattice Boltzmann approach

Alessandro De Rosis ()
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Alessandro De Rosis: DICAM, University of Bologna, Viale del Risorgimento 2, Bologna 40136, Italy

International Journal of Modern Physics C (IJMPC), 2014, vol. 25, issue 04, 1-18

Abstract: In this paper, the lattice Boltzmann (LB) method is used in order to simulate non-Newtonian blood flows in deformable vessels. Casson's rheological model is adopted and a local correction to the relaxation time is implemented in order to modify the viscosity. The hyperelastic, hardening and anisotropic behavior of a flexible arterial wall is discussed and a closed-form solution is used to predict the deformed configuration of the vessel. A partitioned staggered-explicit strategy to couple the LB method and such analytical prediction is proposed.

Keywords: Lattice Boltzmann method; deformable vessel; pulsatile flow; fluid-structure interaction; 11.25.Hf; 123.1K (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0129183113501076

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