Title: Numerical approximation of flow in a symmetric channel with vibrating walls
Authors: Sváček, Petr
Horáček, Jaromír
Citation: Applied and Computational Mechanics. 2010, vol. 4, no. 2, p. 225-236.
Issue Date: 2010
Publisher: University of West Bohemia
Document type: article
článek
URI: http://www.kme.zcu.cz/acm/index.php/acm/article/view/62/60
http://hdl.handle.net/11025/1407
ISSN: 1802-680X (Print)
2336-1182 (Online)
Keywords: biomechanika hlasové produkce;Navierova-Stokesova rovnice;metoda konečných prvků;Lagrange-Eulerova metoda
Keywords in different language: biomechanics of voice production;Navier-Stokes equation;finite element method;Lagrange-Eulerian method
Abstract: In this paper the numerical solution of two dimensional fluid-structure interaction problem is addressed. The fluid motion is modelled by the incompressible unsteady Navier-Stokes equations. The spatial discretization by stabilized finite element method is used. The motion of the computational domain is treated with the aid of Arbitrary Lagrangian Eulerian (ALE) method. The time-space problem is solved with the aid of multigrid method. The method is applied onto a problem of interaction of channel flow with moving walls, which models the air flow in the glottal region of the human vocal tract. The pressure boundary conditions and the effects of the isotropic and anisotropic mesh refinement are discussed. The numerical results are presented.
Rights: © 2010 University of West Bohemia. All rights reserved.
Appears in Collections:Volume 4, number 2 (2010)
Volume 4, number 2 (2010)

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