TY - GEN
T1 - Flow past a stationary and moving cylinder
T2 - DoD HPCMP Users Group Conference, UGC 2004
AU - Dong, Suchuan
AU - Lucor, Didier
AU - Karniadakis, George Em
PY - 2004/1/1
Y1 - 2004/1/1
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/21444447303
U2 - 10.1109/dod_ugc.2004.18
DO - 10.1109/dod_ugc.2004.18
M3 - Conference contribution
AN - SCOPUS:21444447303
SN - 0769522599
SN - 9780769522593
T3 - Proceedings - Department of Defense High Performance Computing Modernization Program Users Group Conference, UGC 2004
SP - 72
EP - 79
BT - Proceedings - Users Group Conference, UGC 2004
PB - IEEE Computer Society
Y2 - 7 June 2004 through 11 July 2004
ER -