000014951 001__ 14951
000014951 005__ 20161115100207.0
000014951 04107 $$aeng
000014951 046__ $$k2016-08-21
000014951 100__ $$aGayme, Dennice
000014951 24500 $$aRestricted Nonlinear Roll/Streak Dynamics in Plane Couette Flow (INVITED)

000014951 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014951 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014951 506__ $$arestricted
000014951 520__ $$2eng$$aThe recently developed restricted nonlinear (RNL) modeling framework is used to study a transitioning and turbulent plane Couette flow at moderate Reynolds numbers. The results show that the critical roll and streak structures involved in the self-sustaining process of turbulence are well represented by this model. The transitioning flow shows qualitative similarities in the development and organization of these key flow features when compared to a direct numerical simulation (DNS) of the Navier Stokes (NS) equations. However, there is greater transient energy growth in both the roll and streak structures in the RNL simulations. Further characterization of RNL transitioning flows will determine the merit of studying transition using this type of model, which is an appealing prospect due to its simplified dynamics and the order reduction that leads to significantly reduced computational requirements versus the NS equations.

000014951 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014951 653__ $$a

000014951 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014951 720__ $$aGayme, Dennice
000014951 8560_ $$ffischerc@itam.cas.cz
000014951 8564_ $$s191712$$uhttps://invenio.itam.cas.cz/record/14951/files/TS.MS01-1.03.pdf$$yOriginal version of the author's contribution as presented on CD,  page 46, code TS.MS01-1.03
.
000014951 962__ $$r13812
000014951 980__ $$aPAPER