TY - GEN
T1 - Investigation of the dynamics of incompressible flow in domains of multiple close-packed spheres
AU - Fick, Lambert H.
AU - Merzari, Elia
AU - Marin, Oana
AU - Hassan, Yassin A.
N1 - Funding Information:
Argonne National Laboratory’s work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357.
Publisher Copyright:
© Copyright 2017 ASME.
PY - 2017
Y1 - 2017
N2 - The study of flows over spherical bluff bodies is relevant in engineering systems such as nuclear power reactors. These flows exhibit complex spatial and temporal behavior due to the presence of significant streamwise curvature that leads to boundary layer separation and reattachment, and the turbulence phenomena associated with these effects. In this study, we present results for flow over one and two spheres in free-stream conditions at Reynolds number 1,000, which corresponds to a turbulentflow regime. The goal of the study was to verify our simulation methodology and develop an initial understanding regarding the spatial and temporal effects of additional spheres in close proximity to the canonical single-sphere case. Based on our results, we find that additional spheres significantly alter the behavior of the flow. The addition of a second sphere suppresses vortex formation, while the temporal correlation between points in the wake is also reduced.
AB - The study of flows over spherical bluff bodies is relevant in engineering systems such as nuclear power reactors. These flows exhibit complex spatial and temporal behavior due to the presence of significant streamwise curvature that leads to boundary layer separation and reattachment, and the turbulence phenomena associated with these effects. In this study, we present results for flow over one and two spheres in free-stream conditions at Reynolds number 1,000, which corresponds to a turbulentflow regime. The goal of the study was to verify our simulation methodology and develop an initial understanding regarding the spatial and temporal effects of additional spheres in close proximity to the canonical single-sphere case. Based on our results, we find that additional spheres significantly alter the behavior of the flow. The addition of a second sphere suppresses vortex formation, while the temporal correlation between points in the wake is also reduced.
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U2 - 10.1115/FEDSM2017-69340
DO - 10.1115/FEDSM2017-69340
M3 - Conference contribution
AN - SCOPUS:85033570693
T3 - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
BT - Symposia
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2017 Fluids Engineering Division Summer Meeting, FEDSM 2017
Y2 - 30 July 2017 through 3 August 2017
ER -