ON CFD INVESTIGATION OF RADIAL CLEARANCE OF LABYRINTH SEALS OF A TURBINE ENGINE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F20%3A00345860" target="_blank" >RIV/68407700:21220/20:00345860 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/AP.2020.60.0038" target="_blank" >https://doi.org/10.14311/AP.2020.60.0038</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/AP.2020.60.0038" target="_blank" >10.14311/AP.2020.60.0038</a>

Jazyk výsledku

angličtina

Název v původním jazyce

ON CFD INVESTIGATION OF RADIAL CLEARANCE OF LABYRINTH SEALS OF A TURBINE ENGINE

Popis výsledku v původním jazyce

Fluid flow in labyrinth seals of a turbine engine is described. The aim is to describe numerical calculations of fluid flow in labyrinth seals and evaluate calculated data for different settings of radial clearance of labyrinth seals. The results are achieved by 3D CFD detailed simulations in typical seal geometry. The calculations are performed for different radial clearances at constant pressure drop. The calculated data are evaluated based on mass flow, static pressure, total enthalpy and total temperature of air. Based on the calculated data, it is visible, that the total temperature of air is increased in labyrinth seals. The static pressure of air acts as expected –the static pressure is decreased in all teeth. The Mach number is similar in all teeth, but the maximal value is in the last tooth, because of the expansion into the ambient conditions. Results of the calculations are that the total temperature in labyrinth seals is not constant as it is presented or supposed usually in common literature.

Název v anglickém jazyce

ON CFD INVESTIGATION OF RADIAL CLEARANCE OF LABYRINTH SEALS OF A TURBINE ENGINE

Popis výsledku anglicky

Fluid flow in labyrinth seals of a turbine engine is described. The aim is to describe numerical calculations of fluid flow in labyrinth seals and evaluate calculated data for different settings of radial clearance of labyrinth seals. The results are achieved by 3D CFD detailed simulations in typical seal geometry. The calculations are performed for different radial clearances at constant pressure drop. The calculated data are evaluated based on mass flow, static pressure, total enthalpy and total temperature of air. Based on the calculated data, it is visible, that the total temperature of air is increased in labyrinth seals. The static pressure of air acts as expected –the static pressure is decreased in all teeth. The Mach number is similar in all teeth, but the maximal value is in the last tooth, because of the expansion into the ambient conditions. Results of the calculations are that the total temperature in labyrinth seals is not constant as it is presented or supposed usually in common literature.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

<a href="/cs/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Centrum pokročilých leteckých technologií</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Acta Polytechnica

ISSN

1210-2709

e-ISSN

1805-2363

Svazek periodika

60

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

38-48

Kód UT WoS článku

000518459900004

EID výsledku v databázi Scopus

2-s2.0-85081211452