000014424 001__ 14424
000014424 005__ 20161115100151.0
000014424 04107 $$aeng
000014424 046__ $$k2016-08-21
000014424 100__ $$aTardu, Sedat
000014424 24500 $$aFine structure of near wall dissipation

000014424 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014424 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014424 506__ $$arestricted
000014424 520__ $$2eng$$aDirect numerical simulations of a turbulent channel flow performed in large computational domains up to the Karman number 1100 are analyzed in order to clarify the near wall behaviour of the dissipation. It is shown that the axisymmetric homogeneous distribution predicts well the dissipation in the whole layer, and that the local isotropy is only valid towards the end of the log-layer. The dissipation characteristics conditioned by fixed amplitudes of the velocity fluctuations show that the level-crossings of the wall normal velocity in the spanwise direction contribute most significantly to the dissipation next to the wall.

000014424 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014424 653__ $$a

000014424 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014424 720__ $$aTardu, Sedat
000014424 8560_ $$ffischerc@itam.cas.cz
000014424 8564_ $$s183827$$uhttps://invenio.itam.cas.cz/record/14424/files/TS.FM02-1.02.pdf$$yOriginal version of the author's contribution as presented on CD,  page 482, code TS.FM02-1.02
.
000014424 962__ $$r13812
000014424 980__ $$aPAPER