Influence of Thermo-mechanical Deformation on the Labyrinth Seals Efficiency

Kód výsledku v IS VaVaI

RIV/68407700:21220/22:00357433 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.21495/51-2-305

DOI - Digital Object Identifier

10.21495/51-2-305

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Thermo-mechanical Deformation on the Labyrinth Seals Efficiency

Popis výsledku v původním jazyce

This paper describes the influence of turbine engine operating conditions on the labyrinth seals and the related rotor and stator parts deformation. As the deformation due to centrifugal force and temperature field increases, the radial clearance between the stator and rotor decreases, and thus the operating conditions and efficiency of the entire turbine engine are changed. The paper presents a numerical calculation of the flow and a finite element calculation of the deformation in two operating modes, as well as the calculation model of labyrinth seals, which are often incorrectly used in research. Furthermore, the change of parameters depending on the number of labyrinth seal stages in the axial direction is studied. The result of the study is the dependence of efficiency on the size of the radial clearance and operating conditions

Název v anglickém jazyce

Influence of Thermo-mechanical Deformation on the Labyrinth Seals Efficiency

Popis výsledku anglicky

This paper describes the influence of turbine engine operating conditions on the labyrinth seals and the related rotor and stator parts deformation. As the deformation due to centrifugal force and temperature field increases, the radial clearance between the stator and rotor decreases, and thus the operating conditions and efficiency of the entire turbine engine are changed. The paper presents a numerical calculation of the flow and a finite element calculation of the deformation in two operating modes, as well as the calculation model of labyrinth seals, which are often incorrectly used in research. Furthermore, the change of parameters depending on the number of labyrinth seal stages in the axial direction is studied. The result of the study is the dependence of efficiency on the size of the radial clearance and operating conditions

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

EF16_019/0000826: Centrum pokročilých leteckých technologií

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ENGINEERING MECHANICS 2022

ISBN

978-80-86246-48-2

ISSN

1805-8248

e-ISSN

1805-8256

Počet stran výsledku

4

Strana od-do

305-308

Název nakladatele

Institute of Theoretical and Applied Mechanics, AS CR

Místo vydání

Prague

Místo konání akce

Milovy

Datum konání akce

9. 5. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—