Modelling the human pharyngeal airway: validation of numerical simulations using in vitro experiments

Details Modelling the human pharyngeal airway: validation of numerical simulations using in vitro experiments Modelling the human pharyngeal airway: validation of numerical simulations using in vitro experiments

2008-11-26

arxiv.org/abs/0811.4348v1

Med Biol Eng Comput (2008) epub ahead of print

Physics

Medical Physics

Scientific paper

10.1007/s11517-008-0412-1

In the presented study, a numerical model which predicts the flow-induced collapse within the pharyngeal airway is validated using in vitro measurements. Theoretical simplifications were considered to limit the computation time. Systematic comparisons between simulations and measurements were performed on an in vitro replica, which reflects asymmetries of the geometry and of the tissue properties at the base of the tongue and in pathological conditions (strong initial obstruction). First, partial obstruction is observed and predicted. Moreover, the prediction accuracy of the numerical model is of 4.2% concerning the deformation (mean quadratic error on the constriction area). It shows the ability of the assumptions and method to predict accurately and quickly a fluid-structure interaction.

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