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Publications in Scientific Journals:

J. Valasek, M. Kaltenbacher, P. Svacek:
"On the Application of Acoustic Analogies in the Numerical Simulation of Human Phonation Process";
Flow Turbulence Combust, 101 (2018), 15 pages.



English abstract:
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 ConvectiveWave 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.

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


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1007/s10494-018-9900-z

Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_269340.pdf


Created from the Publication Database of the Vienna University of Technology.