Thibault Bridel-Bertomeu
CERFACS
Abstract:
The flow in an enclosed rotating cavity is investigated numerically
using Large Eddy Simulation. Three distinct configurations are presented
to study separately the impact of the aspect ratio and the mean
curvature of the cavity on the natural response of the base rotor/stator
flow. The results yield by an entire suite of diagnostics are presented
and discussed in order to identify the structures constituent of the
visible flow patterns or frequencies spotted using pointwise Fourier
analyses. Complementarily to the classical study of the boundary layers
behaviour, the macro-structures developing in the homogeneous core of
the cavity flow are also probed and are shown to be partly related to
the instability of the boundary layers.
