Contribution to an extended modelling of the core flow behaviour in a rotor-stator cavity with a superimposed radial inflow

Article dans une revue avec comité de lecture
Auteur
DEBUCHY, Roger
197216 Laboratoire Génie Civil et Géo-Environnement [Béthune] [LGCgE]
RINALDI, Andréa
BOIS, Gérard
1252 Laboratoire de Mécanique de Lille - FRE 3723 [LML]
BREABAN, Florin
197216 Laboratoire Génie Civil et Géo-Environnement [Béthune] [LGCgE]

URI
http://hdl.handle.net/10985/9697
DOI
10.1051/meca/2015022
Date
2015
Journal
Mechanics & Industry

Résumé

The present study focuses on the turbulent flow with separated boundary layers in a rotor-stator cavity with a low aspect ratio subjected to a weak centripetal radial inflow. One of the major results is to show, with the help of numerous experimental data, that the core swirl ratio always evolves according to a power law of the dimensionless radius. Starting from this simple behaviour law, new original flow properties are highlighted and particularly the existence of an invariant quantity in the core region.

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