Open AccessNUMERICAL SOLUTION OF FLUID-STRUCTURE INTERACTION PROBLEMS WITH CONSIDERING OF CONTACTS
Author(s) -
Petr Sváček
Publication year - 2021
Publication title -
acta polytechnica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.207
H-Index - 15
eISSN - 1805-2363
pISSN - 1210-2709
DOI - 10.14311/ap.2021.61.0155
Subject(s) - compressibility , closure (psychology) , mechanics , reynolds number , eulerian path , fluid–structure interaction , porous medium , computational fluid dynamics , instability , domain (mathematical analysis) , numerical stability , distortion (music) , classical mechanics , mathematics , computer science , numerical analysis , physics , lagrangian , mathematical analysis , finite element method , materials science , porosity , turbulence , amplifier , computer network , bandwidth (computing) , market economy , thermodynamics , economics , composite material
This paper is interested in the mathematical modelling of the voice production process. The main attention is on the possible closure of the glottis, which is included in the model with the concept of a fictitious porous media and using the Hertz impact force The time dependent computational domain is treated with the aid of the Arbitrary Lagrangian-Eulerian method and the fluid motion is described by the incompressible Navier-Stokes equations coupled to structural dynamics. In order to overcome the instability caused by the dominating convection due to high Reynolds numbers, stabilization procedures are applied and numerically analyzed for a simplified problem. The possible distortion of the computational mesh is considered. Numerical results are shown.