000014586 001__ 14586
000014586 005__ 20161115100156.0
000014586 04107 $$aeng
000014586 046__ $$k2016-08-21
000014586 100__ $$aPoncet, Sebastien
000014586 24500 $$aDNS of turbulent flows inside a simplified stage of high- pressure compressor

000014586 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014586 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014586 506__ $$arestricted
000014586 520__ $$2eng$$aThe present work reports high-order direct numerical simulations (DNS) of the turbulent flow inside a simplified stage of highpressure compressor. The geometry corresponds to the experimental set-up of Owen and Pincombe [4] and Farthing et al. [1]. The axial Reynolds number is fixed to Re = 5300, while five values of the Rossby number are considered: Ro = 1, 2, 4, 40 and +∞. For Ro = +∞, the main flow along the axis is similar to a round jet with packets of helicoidal turbulent structures. A vortex stretching mechanism generates elongated structures in the axial direction. A secondary flow is produced inside the cavity with a main recirculation. For Ro = 2 and 1, modes 1b and 2b are obtained respectively, coexisting with type 1 and type 2 instabilities developed along the disks.

000014586 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014586 653__ $$a

000014586 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014586 720__ $$aPoncet, Sebastien
000014586 8560_ $$ffischerc@itam.cas.cz
000014586 8564_ $$s139307$$uhttps://invenio.itam.cas.cz/record/14586/files/TS.FM07-5.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 967, code TS.FM07-5.05
.
000014586 962__ $$r13812
000014586 980__ $$aPAPER