Abstract
Direct numerical simulations are performed to analyze the three-dimensional instability of flows over three-dimensional cavities. The flow structures at different Reynolds numbers are investigated by using the spectral-element solver nek5000. As the Reynolds number increasing, the lateral wall effects become more important, the recirculation zone shrinks, the front vortex increases and the flow structure inside of the cavity becomes more complex. Results show that the flow bifurcates from a steady state to an oscillatory regime beyond a value of Reynolds number Re = 1100
Original language | English |
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Title of host publication | Procedia IUTAM: Special Issue for the 8th IUTAM-ABCM Symposium on Laminar Turbulent Transition, LTT 2014 |
Editors | Marcello A F Medeiros, Julio R Meneghini |
Place of Publication | Amsterdam Netherlands |
Publisher | Elsevier |
Pages | 511 - 518 |
Number of pages | 8 |
Volume | 14 |
DOIs | |
Publication status | Published - 2015 |
Event | IUTAM-ABCM Symposium on Laminar Turbulent Transition 2014 - Pestana Rio Atlântica, Rio de Janeiro, Brazil Duration: 8 Sept 2014 → 12 Sept 2014 Conference number: 8th http://www.ndf.poli.usp.br/SLTT2014/index.html http://toc.proceedings.com/26997webtoc.pdf |
Conference
Conference | IUTAM-ABCM Symposium on Laminar Turbulent Transition 2014 |
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Abbreviated title | LTT 2014 |
Country/Territory | Brazil |
City | Rio de Janeiro |
Period | 8/09/14 → 12/09/14 |
Internet address |