Title:	Curvilinear element of the discontinuous Galerkin method designed to capture the labyrinth seal geometry exactly
Authors:	Bublík, Ondřej Pecka, Aleš Vimmr, Jan
Citation:	Applied and Computational Mechanics. 2022, vol. 16, no. 1, p. 5-22.
Issue Date:	2022
Publisher:	University of West Bohemia
Document type:	článek article
URI:	https://www.kme.zcu.cz/acm/acm/issue/view/31 http://hdl.handle.net/11025/49229
ISSN:	1802-680X (Print) 2336-1182 (Online)
Keywords:	labyrintové těsnění;diskontinuální Galerkinova metoda;křivočarý prvek
Keywords in different language:	labyrinth seal;discontinuous Galerkin method;curvilinear element
Abstract in different language:	The present study applies the discontinuous Galerkin finite element method to a numerical simulation of a compressible fluid flow through a labyrinth seal. This paper is proposes a curvilinear hexahedral element, which is deformed in such a way that it matches the rotated walls of the labyrinth seal exactly. A numerical study is performed on the staggered labyrinth seal with two teeth on the rotor and one tooth on the stator. For numerical simulation, three computational meshes with different refinement are considered. All of the numerical simulations are performed for both stationary rotor and for rotor rotating at 50 Hz. The obtained numerical results are compared with results computed by the commercial CFD software Ansys Fluent.
Rights:	© University of West Bohemia
Appears in Collections:	Články / Articles (KME) Volume 16, number 1 (2022) Volume 16, number 1 (2022)

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