000013923 001__ 13923
000013923 005__ 20161115094005.0
000013923 04107 $$aeng
000013923 046__ $$k2016-08-21
000013923 100__ $$aTuliszka-Sznitko, Ewa
000013923 24500 $$aNumerical study of the Tsylor-Couette flow using DNS/SVV

000013923 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013923 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013923 506__ $$arestricted
000013923 520__ $$2eng$$aThe authors present the results obtained during a numerical investigations of the Tylor-Couette flow in configurations of aspect ratios 11.75 and 3.76, different radii ratios and end-wall boundary conditions. The main purpose of the research is to investigate the influence of geometrical parameters and end-walls boundary conditions on the flow structure, the torque fluctuations and its total values. The results are discussed in the light of Brauckmann, Eckhardt [1] and Dong [2] data obtained with periodicity condition in axial direction. The results are compared also with Wendt [3] experimental results. For the cavity of aspect ratio 3.76 the authors study the laminar-turbulent transition for the radii ratio from the range: 0.375 - 0.821. The authors have found that the transition from the three-cell structure to the one-cell structure occurs only for the lower ratios. Computations are performed for Re up to 3100. All presented results have been obtained with the use of DNS/SVV method in which an artificial Viscous operator is added to Laplace operator to stabilize the computational process for higher Reynolds numbers.

000013923 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013923 653__ $$a

000013923 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013923 720__ $$aTuliszka-Sznitko, Ewa
000013923 8560_ $$ffischerc@itam.cas.cz
000013923 8564_ $$s195201$$uhttp://invenio.itam.cas.cz/record/13923/files/PO.FM07-1.16.132.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 1015, code PO.FM07-1.16.132).
000013923 962__ $$r13812
000013923 980__ $$aPAPER