000013914 001__ 13914
000013914 005__ 20161115094005.0
000013914 04107 $$aeng
000013914 046__ $$k2016-08-21
000013914 100__ $$aChopra, Gaurav
000013914 24500 $$aIntermittency of laminar seperaration bubble during drag crisis in flow past a circular cylinder

000013914 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013914 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013914 506__ $$arestricted
000013914 520__ $$2eng$$aThis work explores the phenomenon of drag crisis in flow past circular cylinder: a significant reduction in drag with increase in Re due to transition of boundary layer from laminar to turbulent state. The incompressible flow equations are solved using a stabilized finite element method for 1 × 104 ≤ Re ≤ 4 × 105 , in three dimensions. The computations successfully capture the phenomenon. It is shown that the drag crisis is accompanied with appearance of a Laminar Separation Bubble (LSB). The intermittent nature of the LSB during the transition is explored. In addition to the streamlines, the LSB may also be tracked via filtered Reynolds stress and fluctuations in surface pressure.

000013914 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013914 653__ $$a

000013914 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013914 720__ $$aChopra, Gaurav
000013914 8560_ $$ffischerc@itam.cas.cz
000013914 8564_ $$s147940$$uhttps://invenio.itam.cas.cz/record/13914/files/PO.FM07-1.06.122.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 997, code PO.FM07-1.06.122).
000013914 962__ $$r13812
000013914 980__ $$aPAPER