Flow past a stationary and moving cylinder: DNS at Re=10,000

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Abstract

We conduct direct numerical simulations with 300 million degrees of freedom of turbulent flows past a stationary and a forced oscillating rigid cylinder at the Reynolds number Re=10,000. This one-order of magnitude increase in Reynolds number (compared to previous DNS) is accomplished by employing a multilevel-type parallel algorithm within the spectral element framework. Comparisons with the available experimental data show that the simulation has captured the flow quantities, mean, and rms statistics of the cylinder wake correctly. We also examine the effect of the randomness in the inflow on the vortex formation at a lower Reynolds number. We demonstrate that noisy inflows cause a vortex shedding-mode switching in the cylinder wake.

Original languageEnglish
Title of host publicationProceedings - Users Group Conference, UGC 2004
PublisherIEEE Computer Society
Pages72-79
Number of pages8
ISBN (Print)0769522599, 9780769522593
DOIs
Publication statusPublished - 1 Jan 2004
Externally publishedYes
EventDoD HPCMP Users Group Conference, UGC 2004 - Williamsburg, VA, United States
Duration: 7 Jun 200411 Jul 2004

Publication series

NameProceedings - Department of Defense High Performance Computing Modernization Program Users Group Conference, UGC 2004

Conference

ConferenceDoD HPCMP Users Group Conference, UGC 2004
Country/TerritoryUnited States
CityWilliamsburg, VA
Period7/06/0411/07/04

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