TY - JOUR
T1 - LES and DES Investigations of Turbulent Flow over a Sphere at Re = 10,000
AU - Constantinescu, G. S.
AU - Squires, Kyle
N1 - Funding Information:
This work is supported by the U.S. Office of Naval Research (Grant Numbers N00014-96-1-1251, N00014-97-1-0238, and N00014-99-1-0922, Program Officers: Dr. Patrick Purtell and Dr. Candace Wark). The authors would like to thank Professor M. Peric for providing the authors with the data corresponding to the experimental investigations performed in his group as well as for his valuable suggestions. The authors gratefully acknowledge valuable discussions with Dr. Philippe R. Spalart.
PY - 2003
Y1 - 2003
N2 - The flow around a sphere at a reynolds number of 104 in the subcritical regime was investigated. The large eddy simulation (LES) using a dynamic Smagorinsky type subgrid stress (SGS) model and detached eddy simulation (DES) were applied. The dynamic eddy viscosity model is used in the LES. In the regime the boundary layers at separation were laminar and transition to turbulence that occurs farther downstream in the separated shear layers. The quantities such as the drag coefficient, wake frequencies, position of laminar separation on the sphere and the mean pressure and skin-friction distributions along the sphere were also predicted.
AB - The flow around a sphere at a reynolds number of 104 in the subcritical regime was investigated. The large eddy simulation (LES) using a dynamic Smagorinsky type subgrid stress (SGS) model and detached eddy simulation (DES) were applied. The dynamic eddy viscosity model is used in the LES. In the regime the boundary layers at separation were laminar and transition to turbulence that occurs farther downstream in the separated shear layers. The quantities such as the drag coefficient, wake frequencies, position of laminar separation on the sphere and the mean pressure and skin-friction distributions along the sphere were also predicted.
KW - Computational fluid dynamics
KW - Detached eddy simulation
KW - Large eddy simulation
KW - Massively separated flows
KW - Subgrid scale models
KW - Wakes
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U2 - 10.1023/B:APPL.0000004937.34078.71
DO - 10.1023/B:APPL.0000004937.34078.71
M3 - Review article
AN - SCOPUS:0346331371
VL - 70
SP - 267
EP - 298
JO - Flow, Turbulence and Combustion
JF - Flow, Turbulence and Combustion
SN - 1386-6184
IS - 1-4
ER -