Mechanics & Industry
Volume 16, Number 4, 2015
|Number of page(s)||12|
|Published online||12 June 2015|
Contribution to an extended modelling of the core flow behaviour in a rotor-stator cavity with a superimposed radial inflow
1 Laboratoire Génie Civil &
Géo-Environnement (LGCgE- EA 4515), UArtois/FSA Béthune, 62400
2 CRITTM2A, 62700 Bruay-la-Buissière, France
3 Laboratoire de Mécanique de Lille (LML – UMR 8107), Arts et Métiers ParisTech, Lille, France
a Corresponding author:
Accepted: 5 March 2015
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.
Key words: Rotor-Stator cavity / analytical solution / hot-wire anemometry
© AFM, EDP Sciences 2015
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