Étude expérimentale et modélisation de l'écoulement de jeu d'une aube fixe isolée

Deveaux, Benjamin; Fournis, Camille; Brion, Vincent; Marty, Julien; Dazin, Antoine

Document type :

Communication dans un congrès avec actes

Title :

Étude expérimentale et modélisation de l'écoulement de jeu d'une aube fixe isolée

Author(s) :

Deveaux, Benjamin [Auteur]
DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon]
Fournis, Camille [Auteur]
DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon]
Brion, Vincent [Auteur]
DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon]
Marty, Julien [Auteur]
DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon]
Dazin, Antoine [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]

Conference title :

ASME-JSME-KSME Joint Fluids Engineering Conference

City :

SAN FRANCISCO

Country :

Etats-Unis d'Amérique

Start date of the conference :

2019-07-28

Keyword(s) :

COMPRESSEUR
ÉCOULEMENT JEU
AUBE ISOLEE

English keyword(s) :

COMPRESSOR
TIP-LEAKAGE FLOW
ISOLATED BLADE

HAL domain(s) :

Sciences de l'ingénieur [physics]
Physique [physics]

English abstract : [en]

The tip-leakage flow has detrimental effects on the performance of compressors. In this paper the effects of gap height and incoming casing boundary layer thickness are analyzed. Velocity and total pressure measurements ...
Show more >The tip-leakage flow has detrimental effects on the performance of compressors. In this paper the effects of gap height and incoming casing boundary layer thickness are analyzed. Velocity and total pressure measurements are carried out in a plane behind the trailing edge of an isolated fixed blade. The total pressure loss is decomposed in a vortex loss and a wake loss. It appears that the increase of total pressure losses with the gap height comes essentially from the vortex part. This observation motivated the development of a model based on an analogy with a jet in crossflow to estimate the tip-leakage vortex circulation. The predictions of this model are consistent with the experimental data for gaps smaller than 4 % of chord.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Laboratoire de Mécanique des Fluides de Lille Kampé de Fériet (LMFL) - UMR 9014

Source :

Harvested from HAL

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