Title: High-order numerical simulation of fluid-structure interaction in the human larynx

Authors: Martin Larsson; Bernhard Müller

Addresses: ONERA-DAFE, 8 rue des Vertugadins, F-92190 Meudon, France ' Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Kolbjørn Hejes vei 2, NO-7491 Trondheim, Norway

Abstract: We present a 2D model of the human larynx able to reproduce the self-sustained oscillating interaction between the airflow and the vocal folds. We describe the interaction of the compressible flow and the elastic structure in an ALE formulation. Our solver uses globally fourth-order accurate Summation By Parts (SBP) finite difference operators in space and a fourth-order explicit method in time. We derive Simultaneous Approximation Term (SAT) expressions that impose the velocity and traction boundary conditions weakly. We present results from simulations with realistic parameters for human phonation.

Keywords: fluid-structure interaction; high-order finite difference method; phonation; human larynx; numerical simulation; modelling; compressible flow; elastic structure; velocity; traction boundary conditions; vocal folds; vocal cords; air flow.

DOI: 10.1504/PCFD.2012.047459

Progress in Computational Fluid Dynamics, An International Journal, 2012 Vol.12 No.2/3, pp.164 - 175

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 21 Jun 2012 *

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