On the Application of Acoustic Analogies in the Numerical Simulation of Human Phonation Process

J. Valášek*, M. Kaltenbacher, P. Sváček

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This paper deals with the numerical simulation of the flow induced sound as generated in the human phonation process. The two-dimensional fluid-structure interaction problem is modeled with the aid of linear elastic problem coupled to the incompressible Navier-Stokes equations in the arbitrary Lagrangian-Eulerian form. For calculation of sound sources and its propagation the Lighthill acoustic analogy is used. This approach is compared to the Perturbed Convective Wave Equation method. All partial differential equations, describing the elastic body motion, the fluid flow and the acoustics, are solved by applying the finite element method. In order to overcome numerical instabilities in the Navier-Stokes equations arising due to high Reynolds numbers, the modified streamline-upwind/Petrov-Galerkin stabilization is used. The implemented iterative coupling procedure is described. Numerical results are presented.

Original languageEnglish
Pages (from-to)129-143
Number of pages15
JournalFlow, Turbulence and Combustion
Issue number1
Publication statusPublished - 15 Jan 2019
Externally publishedYes


  • 2D Navier-Stokes equations
  • Aeroacoustic analogies
  • Fluid-structure interaction
  • Linear elasticity
  • Perfectly matched layer

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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