Abstract
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.
Original language | English (US) |
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Pages (from-to) | 267-298 |
Number of pages | 32 |
Journal | Flow, Turbulence and Combustion |
Volume | 70 |
Issue number | 1-4 |
DOIs | |
State | Published - Dec 29 2003 |
Keywords
- Computational fluid dynamics
- Detached eddy simulation
- Large eddy simulation
- Massively separated flows
- Subgrid scale models
- Wakes
ASJC Scopus subject areas
- Chemical Engineering(all)
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry