Numerical Simulation and Experimental Modelling of Fluid - Structure Interaction in Veins

0351731 - ÚT 2011 RIV CZ eng C - Conference Paper (international conference)
Štembera, V. - Chlup, Hynek - Maršík, František
Numerical Simulation and Experimental Modelling of Fluid - Structure Interaction in Veins.
Human Biomechanics 2010. Liberec: Technical University of Liberec, 2010 - (Čapek, L.), s. 317-322. ISBN 978-80-7372-648-5.
[Human Biomechanics 2010. Sychrov (CZ), 04.10.2010-06.10.2010]
Institutional research plan: CEZ:AV0Z20760514
Keywords : fluid-structure interaction * numerical simulation * experimental investigation
Subject RIV: JJ - Other Materials

The mixed formulation of the finite element method with the separately interpolated pressure is used for the numerical simulation of the fluid structure interaction. To describe a wider class of problems we consider in the simulation the three material models: the Neo-Hookean, the isotropic Gent model and the anisotropic Gent material model to include the influence of collagen structure of blood vessels. The fluid is modelled as Newtonian liquid. The strong coupling of both structure and fluid solvers allow us to simulate large deflection oscillations of the structure. The special experimental mock up line was designed for the investigation of unsteady fluid structure phenomena. Latex tubes with variable inner diameter and wall thickness are used as specimens. The qualitative and quantitative fluid structure phenomenon investigation are performed for both the continuous and pulsatile flow.
Permanent Link: http://hdl.handle.net/11104/0191420